http___www.ted.com_talks_heather_barnett_what_humans_can_learn_from_semi_intelligent_slime_1_transcript_language_hr_1.xml
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Subtitles and Transcript 0:11 I'd like to introduce you to an organism: a slime mold, Physarum polycephalum. It's a mold with an identity crisis, because it's not a mold, so let's get that straight to start with. It is one of 700 known slime molds belonging to the kingdom of the amoeba. It is a single-celled organism, a cell, that joins together with other cells to form a mass super-cell to maximize its resources. So within a slime mold you might find thousands or millions of nuclei, all sharing a cell wall, all operating as one entity. In its natural habitat, you might find the slime mold foraging in woodlands, eating rotting vegetation, but you might equally find it in research laboratories, classrooms, and even artists' studios. 1:01 I first came across the slime mold about five years ago. A microbiologist friend of mine gave me a petri dish with a little yellow blob in it and told me to go home and play with it. The only instructions I was given, that it likes it dark and damp and its favorite food is porridge oats. I'm an artist who's worked for many years with biology, with scientific processes, so living material is not uncommon for me. I've worked with plants, bacteria, cuttlefish, fruit flies. So I was keen to get my new collaborator home to see what it could do. So I took it home and I watched. I fed it a varied diet. I observed as it networked. It formed a connection between food sources. I watched it leave a trail behind it, indicating where it had been. And I noticed that when it was fed up with one petri dish, it would escape and find a better home. 1:56 I captured my observations through time-lapse photography. Slime mold grows at about one centimeter an hour, so it's not really ideal for live viewing unless there's some form of really extreme meditation, but through the time lapse, I could observe some really interesting behaviors. For instance, having fed on a nice pile of oats, the slime mold goes off to explore new territories in different directions simultaneously. When it meets itself, it knows it's already there, it recognizes it's there, and instead retreats back and grows in other directions. I was quite impressed by this feat, at how what was essentially just a bag of cellular slime could somehow map its territory, know itself, and move with seeming intention. 2:48 I found countless scientific studies, research papers, journal articles, all citing incredible work with this one organism, and I'm going to share a few of those with you. For example, a team in Hokkaido University in Japan filled a maze with slime mold. It joined together and formed a mass cell. They introduced food at two points, oats of course, and it formed a connection between the food. It retracted from empty areas and dead ends. There are four possible routes through this maze, yet time and time again, the slime mold established the shortest and the most efficient route. Quite clever. The conclusion from their experiment was that the slime mold had a primitive form of intelligence. Another study exposed cold air at regular intervals to the slime mold. It didn't like it. It doesn't like it cold. It doesn't like it dry. They did this at repeat intervals, and each time, the slime mold slowed down its growth in response. However, at the next interval, the researchers didn't put the cold air on, yet the slime mold slowed down in anticipation of it happening. It somehow knew that it was about the time for the cold air that it didn't like. The conclusion from their experiment was that the slime mold was able to learn. A third experiment: the slime mold was invited to explore a territory covered in oats. It fans out in a branching pattern. As it goes, each food node it finds, it forms a network, a connection to, and keeps foraging. After 26 hours, it established quite a firm network between the different oats. Now there's nothing remarkable in this until you learn that the center oat that it started from represents the city of Tokyo, and the surrounding oats are suburban railway stations. The slime mold had replicated the Tokyo transport network — (Laughter) — a complex system developed over time by community dwellings, civil engineering, urban planning. What had taken us well over 100 years took the slime mold just over a day. The conclusion from their experiment was that the slime mold can form efficient networks and solve the traveling salesman problem. 5:04 It is a biological computer. As such, it has been mathematically modeled, algorithmically analyzed. It's been sonified, replicated, simulated. World over, teams of researchers are decoding its biological principles to understand its computational rules and applying that learning to the fields of electronics, programming and robotics. 5:26 So the question is, how does this thing work? It doesn't have a central nervous system. It doesn't have a brain, yet it can perform behaviors that we associate with brain function. It can learn, it can remember, it can solve problems, it can make decisions. So where does that intelligence lie? So this is a microscopy, a video I shot, and it's about 100 times magnification, sped up about 20 times, and inside the slime mold, there is a rhythmic pulsing flow, a vein-like structure carrying cellular material, nutrients and chemical information through the cell, streaming first in one direction and then back in another. And it is this continuous, synchronous oscillation within the cell that allows it to form quite a complex understanding of its environment, but without any large-scale control center. This is where its intelligence lies. 6:24 So it's not just academic researchers in universities that are interested in this organism. A few years ago, I set up SliMoCo, the Slime Mould Collective. It's an online, open, democratic network for slime mold researchers and enthusiasts to share knowledge and experimentation across disciplinary divides and across academic divides. The Slime Mould Collective membership is self-selecting. People have found the collective as the slime mold finds the oats. And it comprises of scientists and computer scientists and researchers but also artists like me, architects, designers, writers, activists, you name it. It's a very interesting, eclectic membership. Just a few examples: an artist who paints with fluorescent Physarum; a collaborative team who are combining biological and electronic design with 3D printing technologies in a workshop; another artist who is using the slime mold as a way of engaging a community to map their area. Here, the slime mold is being used directly as a biological tool, but metaphorically as a symbol for ways of talking about social cohesion, communication and cooperation. Other public engagement activities, I run lots of slime mold workshops, a creative way of engaging with the organism. So people are invited to come and learn about what amazing things it can do, and they design their own petri dish experiment, an environment for the slime mold to navigate so they can test its properties. Everybody takes home a new pet and is invited to post their results on the Slime Mould Collective. And the collective has enabled me to form collaborations with a whole array of interesting people. I've been working with filmmakers on a feature-length slime mold documentary, and I stress feature-length, which is in the final stages of edit and will be hitting your cinema screens very soon. (Laughter) 8:33 It's also enabled me to conduct what I think is the world's first human slime mold experiment. This is part of an exhibition in Rotterdam last year. We invited people to become slime mold for half an hour. So we essentially tied people together so they were a giant cell, and invited them to follow slime mold rules. You have to communicate through oscillations, no speaking. You have to operate as one entity, one mass cell, no egos, and the motivation for moving and then exploring the environment is in search of food. So a chaotic shuffle ensued as this bunch of strangers tied together with yellow ropes wearing "Being Slime Mold" t-shirts wandered through the museum park. When they met trees, they had to reshape their connections and reform as a mass cell through not speaking. This is a ludicrous experiment in many, many ways. This isn't hypothesis-driven. We're not trying to prove, demonstrate anything. But what it did provide us was a way of engaging a broad section of the public with ideas of intelligence, agency, autonomy, and provide a playful platform for discussions about the things that ensued. One of the most exciting things about this experiment was the conversation that happened afterwards. An entirely spontaneous symposium happened in the park. People talked about the human psychology, of how difficult it was to let go of their individual personalities and egos. Other people talked about bacterial communication. Each person brought in their own individual interpretation, and our conclusion from this experiment was that the people of Rotterdam were highly cooperative, especially when given beer. We didn't just give them oats. We gave them beer as well. 10:38 But they weren't as efficient as the slime mold, and the slime mold, for me, is a fascinating subject matter. It's biologically fascinating, it's computationally interesting, but it's also a symbol, a way of engaging with ideas of community, collective behavior, cooperation. A lot of my work draws on the scientific research, so this pays homage to the maze experiment but in a different way. And the slime mold is also my working material. It's a coproducer of photographs, prints, animations, participatory events. Whilst the slime mold doesn't choose to work with me, exactly, it is a collaboration of sorts. I can predict certain behaviors by understanding how it operates, but I can't control it. The slime mold has the final say in the creative process. And after all, it has its own internal aesthetics. These branching patterns that we see we see across all forms, scales of nature, from river deltas to lightning strikes, from our own blood vessels to neural networks. There's clearly significant rules at play in this simple yet complex organism, and no matter what our disciplinary perspective or our mode of inquiry, there's a great deal that we can learn from observing and engaging with this beautiful, brainless blob. 11:59 I give you Physarum polycephalum. 12:03 Thank you. 12:04 (Applause)
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Subtitles and Transcript Translated by Senzos Osijek Reviewed by Ivan Stamenkovic 0:12 Htjela bih vam predstaviti organizam: sluzavu plijesan, Physarum polycephalum. To je plijesan s krizom identiteta budući da nije plijesan, stoga bismo prvo to trebali raščistiti. Ona je jedna od 700 poznatih sluzavih plijesni koje spadaju u kraljevstvo ameba. To je jednostanični organizam, stanica, koja se spaja s drugim stanicama kako bi stvorila veliku super-stanicu kako bi najučinkovitije iskoristila svoje resurse. Unutar sluzave plijesni možete naći tisuće ili milijune jezgara koje dijele stanični zid i funkcioniraju kao jedan entitet. U svom prirodnom staništu, možete ju naći kako traži hranu u šumskim područjima, kako jede trule biljke, ali ju jednako možete naći u istraživačkim laboratorijima, učionicama pa čak i ateljeima. 1:01 Prvi sam se puta susrela s njom prije otprilike pet godina. Jedan mi je prijatelj mikrobiolog dao petrijevu zdjelicu s malenom žutom mrljom i rekao mi je da se odem kući igrati s njom. Jedina uputa koju sam dobila bila je da voli tamu i vlagu i da joj je omiljeno jelo zobena kaša. Ja sam umjetnica koja je radila mnogo godina s biologijom, znanstvenim procesima, tako da mi živi materijal nije stran. Radila sam s biljkama, bakterijama, sipama, vinskim mušicama. Željela sam što prije odnijeti svog novog suradnika kući da vidim što može. Odnijela sam ga kući i promatrala. Hranila sam ga raznovrsnom hranom. Proučavala sam kako se umrežava. Stvaralo je veze između izvora hrane. Gledala sam kako ostavlja trag za sobom, što je upućivalo na to gdje je bio. Uočila sam da, kad mu dosadi jedna petrijeva zdjelica, pobjegne i nađe bolji dom. 1:56 Snimila sam svoja zapažanja koristeći time-lapse fotografiju. Sluzava plijesan raste brzinom otprilike jedan centimetar po satu, tako da nije zanimljiva za gledanje uživo osim ako se radi o nekoj ekstremnoj meditaciji. Korištenjem time-lapsea, mogu promatrati neka prilično zanimljiva ponašanja. Na primjer, kad se nahrani finom hrpom zobi, sluzava plijesan ode istražiti nova područja u različitim smjerovima u isto vrijeme. Kad se ponovno sretne, zna da je ondje već bila, prepozna da je već ondje, prepozna da je ondje i vrati se i raste u drugim smjerovima. Bila sam prilično impresionirana tim pothvatom, kako vreća stanične sluzi može mapirati svoj teritorij, poznavati sebe i kretati se s namjerom. 2:48 Pronašla sam nebrojene znanstvene studije, istraživanja, članke koji su se bavili ovim organizmom, podijelit ću sada s vama nekoliko njih Na primjer, tim iz sveučilišta Hokkaido u Japanu ispunilo je labirint sluzavom plijesni. Ona se spojila i stvorila veliku stanicu. Stavili su hranu na dva mjesta, zob, naravno, i ona je stvorila vezu između hrane. Povukla se iz praznih dijelova i slijepih završetaka. Postoje četiri moguća puta kroz ovaj labirint, ali je opet iznova plijesan išla najkraćim i najučinkovitijim putem. Prilično pametno. Zaključak istraživanja bio je da sluzava plijesan ima primitivan oblik inteligencije. Druga je studija dovodila zrak plijesni u pravilnim intervalima. Nije joj se svidjelo. Ne voli kad joj je hladno. Ne voli kad je suho. Ponavljali su to u određenim intervalima, i svaki je put sluzava plijesan usporila svoj rast kao odgovor. S druge strane, kod sljedećeg intervala, istraživači nisu uključili hladan zrak, a plijesan je ipak usporila rast u iščekivanju zahladnjenja. Nekako je znala da je vrijeme za hladan zrak koji joj se nije svidio. Zaključak njihovog pokusa je da sluzava plijesan može učiti. Treći pokus: sluzava je plijesan pozvana da istražuje područje prekriveno zobi. Lepezasto se širi. Kako ide, sa svakim čvorom hrane na koji naiđe stvori mrežu, vezu i nastavlja tražiti hranu. Nakon 26 sati stvorila je prilično čvrstu mrežu između različitih zrna zobi. Nema ništa zapanjujuće u tome dok ne saznate da središnje zrno zobi od kojeg je krenula predstavlja Tokio, a da okolna zrnja predstavljaju željezničke stanice u predgrađu. Sluzava je plijesan replicirala prometnu mrežu Tokija. - (Smijeh) - Složenu mrežu razvijenu tijekom vremena preko javnih nastambi, građevina, urbanog planiranja. Ono za što je nama trebalo preko 100 godina, sluzava je plijesan riješila u nešto više od jednog dana. Zaključak njihovog istraživanja bio je da sluzava plijesan može tvoriti učinkovite mreže i rješavati probleme trgovačkih putnika. 5:04 Ona je biološko računalo. Kao takvo, matematički je modelirana, algoritamski raščlanjena. Bila je ozvučena, replicirana, simulirana. Diljem svijeta, timovi istraživača dekodiraju njezina biološka načela kako bi razumjeli njezine računalne zakonitosti i to primijenili na područja elektronike, programiranja i robotike. 5:26 Pitanje je, kako ta stvar radi? Nema središnji živčani sustav. Nema mozak, a može izvoditi ponašanja koja povezujemo s moždanom funkcijom. Može učiti, može pamtiti, može rješavati probleme, može donositi odluke. Gdje leži njezina inteligencija? Ovo je mikroskopska snimka koju sam snimila, na povećanju od približno 100 puta, ubrzano oko 20 puta, i unutar sluzave plijesni, postoji ritmično pulsirajuće strujanje, struktura nalik veni nosi stanični materijal, nutrijente i kemijsku informaciju po stanici, tekući prvo u jednom smjeru pa natrag u drugom smjeru. Ova kontinuirana, sinkrona oscilacija unutar stanice omogućava joj da stvori složeno razumijevanje okoline, ali bez makroskopskog kontrolnog središta. Ovdje leži njezina inteligencija. 6:24 Nisu samo istraživači na sveučilištima zainteresirani za ovaj organizam. Prije nekoliko sam godina pokrenula SliMoCo, Udruženje za Sluzavu Plijesan (eng. Slime Mould Collective.) To je online, otvorena, demokratska mreža za istraživače sluzave plijesni i entuzijaste kako bi mogli dijeliti svoje znanje i istraživanja preko granica pojedinih disciplina i akademskih granica. Članstvo se samo izabire. Ljudi su ovu inicijativu pronašli na način na koji sluzava plijesan pronalazi zob. Sastoji se od znanstvenika, informatičara i istraživača, ali i od umjetnika kao što sam ja, arhitekata, dizajnera, pisaca, aktivista, čega god. To je vrlo zanimljiva, eklektična ekipa. Evo nekoliko primjera: umjetnik koji slika s fluorescentnim Physarumom; ekipa koja surađuje i koja kombinira biološki i elektronički dizajn s 3D printanjem u radionici; još jedan umjetnik koji koristi sluzavu plijesan kako bi pokrenuo zajednicu da mapira svoje područje. Ovdje se sluzava plijesan izravno koristi kao biološko oruđe, ali metaforički kao simbol načina govorenja o socijalnoj koheziji, komunikaciji i suradnji. Postoje i druge aktivnosti. Vodim mnogo radionica o sluzavoj plijesni, kreativan način druženja s organizmom. Pozivamo ljude da dođu i nauče koje odlične stvari ona može učiniti, i da osmisle svoj pokus u petrijevoj zdjelici, u okolišu u kojem će sluzava plijesan navigirati i u kojem će moći testirati njezina svojstva. Svi nose kući novog ljubimca i pozvani su da objave svoje rezultate na Slime Mould Collective. A ta mi je zajednica omogućila da stvorim suradnju s cijelim spektrom zanimljivih ljudi. Radila sam s filmašima na cjelovečernjem dokumentarcu o sluzavoj plijesni naglašavam cjelovečernjem, i u posljednjim je fazama uređivanja i stiže u kina ubrzo. (Smijeh) 8:33 Omogućilo mi je i da provedem, prema mojoj spoznaji, prvo istraživanje s čovjekom i sluzavom plijesni. Ovo je dio izložbe u Rotterdamu prošle godine. Pozvali smo ljude da postanu sluzava plijesan na pola sata. Zavezali smo ljude jedne za druge tako da su bili jedna velika stanica i pozvali smo ih da slijede pravila sluzave plijesni. Morate komunicirati oscilacijama, bez govora. Morate djelovati kao jedno biće, jedna stanica, nema ega, a motivacija za pokretanje i istraživanje okoline je potraga za hranom. Uslijedilo je kaotično preturanje, kako je ova skupina stranaca, povezanih žutim konopcima i u majicama s natpisom "Biti sluzava plijesan", tumarala muzejskim parkom. Kad su došli do drveća, morali su promijeniti svoje poveznice i promijeniti se kao velika stanica bez govorenja. Ovo je lud pokus na toliko, toliko načina. Ovo nije vođeno hipotezom. Nismo pokušali dokazati ni pokazati ništa. Ali ono nam je pružilo način aktiviranja velikog dijela javnosti u razmišljanje o inteligenciji, djelatnosti, autonomiji, i dalo nam je zaigranu platformu za raspravu o stvarima koje su slijedile. Jedna od najuzbudljivijih stvari kod ovog pokusa bio je razgovor koji je uslijedio. Potpuno se spontan simpozij dogodio u parku. Ljudi su govorili o ljudskoj psihologiji, o tome kako je teško pustiti nešto, o njihovim osobnostima i egu. Drugi su ljudi govorili o komuniciranju bakterija. Svaka je osoba dala svoju interpretaciju, a naš je zaključak ovog pokusa bio da su ljudi u Rotterdamu vrlo kooperativni, posebno kad im se da pivo. Nismo im samo dali zob. Dali smo im i pivo. 10:38 Ali nisu bili učinkoviti kao sluzava plijesan, a sluzava je plijesan, za mene, fascinantna tema. Biološki je fascinantna, računalno je zanimljiva, ali je i simbol, način angažiranja zajednice u pojedinim temama, kolektivnom ponašanju, suradnji. Velik se dio mog rada temelji na znanstvenim istraživanjima, tako da je ovo u čast pokusa s labirintom, ali na drugačiji način. Sluzava je plijesan i moj radni materijal. Ona je koproducent fotografija, ispisa, animacija, događanja. I dok sluzava plijesan baš i ne bira raditi sa mnom. Ipak se radi o vidu suradnje. Mogu predvidjeti pojedina ponašanja kako bih razumjela kako djeluje, ali ju ne mogu kontrolirati. Plijesan ima zadnju riječ u kreativnom procesu. Na kraju, ima svoju unutarnju estetiku. Ovi šireći obrasci koje vidimo vidimo ih u svim oblicima, slojevima prirode, od riječnih ušća do udara munje, od krvih žila do neuralnih mreža. Zasigurno postoje značajna pravila u ovom jednostavnom, a opet složenom organizmu, i bez obzira na našu disciplinu, perspektivu ili način ispitivanja, postoji mnogo toga što možemo naučiti iz promatranja i angažiranja ove lijepe mrlje bez mozga. 11:59 Predstavljam vam Physarum polycephalum.