There's nothing particularly special about any number, because by each 0.1 increase more species go extinct on average. We have to pick a point where we say "th

There's nothing particularly special about any number, because by each 0.1 increase more species go extinct on average. We have to pick a point where we say "that's enough species gone", and 2 is bad enough. 1.9,1.8 etc is already critical imo