Although chaotic planetary motion had not been observed, experimentalists had encountered turbulence in fluid motion and nonperiodic oscillation in radio circuits without the benefit of a theory to explain what they were seeing.
Napriek tomu, že chaotický pohyb planét nebol pozorovaný, experimentátori narazili na turbulenciu v pohybe kvapalín a neperiodické kmity v rádiových obvodoch, bez podpory teórie, ktorá by vysvetlila ich pozorovania.