Thao deliberately allowed many interpretations. I have discussed this with Michel and all he could say was that that he was asked to highlight the above statement.
Since the development of individual intellect seems to be the essence of existence - the "critical point" must refer to intellect. 2000 years ago it was expressed as follows:
"Whoever has something in hand - will be given more, and whoever has nothing - will be deprived of even the tiny bit that person has".
I think that the "critical point" is about understanding of the Universe. If we do not attain enough understanding - our intellect will become polluted with propaganda, fear and misinformation SO much that the situation may become critical for our existence, both individual and as a society.