David Attenborough is a hopeless optimist and in connection with the concept of Planetary Boundaries this gets to a point where it becomes nearly comical.
A major flaw of the film is that it is sometimes so unprecisein it's science that it verges on being incorrect. It insinuates, for example, that if we start living inside Planetary Boundaries today we cound somehow get all the toothpaste that has already left the tube back in. This is, especially for the climate boundary (and consequentially for the ocean acidification boundary, the connection of which is clearly explained in the film), simply not the case.
Another flaw is that the things we actually can do, right now, are given not very much space in the film. Especially the connection between a meat-centric diet an the bondaries land-use change, biodiversity loss and nitrogen/phosporous cycle are nor at all explained,
But what can I say? Johann Rockström on Netflix. All is not lost. This should receive a huge audience.
I also think that science is only one part of solving this puzzle. Mr. Rockstöm and Mr. Attenborough telling us that we can solve the crisis by cutting, as private citizens, our emissions in halfge every decade, is really, REALLY oversimplifying things. We as private citizens can rearrange the deckchairs but without politics steering the whole ship away from the iceberg this will not do, not by a long shot.