  In a series of recent papers we have introduced a new interpretation of
quantum mechanics, which for brevity we will call the Montevideo
interpretation. In it, the quantum to classical transition is achieved via a
phenomenon called "undecidability" which stems from environmental decoherence
supplemented with a fundamental mechanism of loss of coherence due to gravity.
Due to the fact that the interpretation grew from several results that are
dispersed in the literature, we put together this straightforward-to-read
article addressing some of the main points that may confuse readers.
