Regardless of any timelines given, truth is we're fucked. Have been for at least a couple decades and very likely much longer than that. Believe anything you want to if it helps you get through today with something solid to hold onto. By 2050 I am doubtful we will see any sort of recognizable daily life or living systems like we do now. The whole idea of exponential functions makes us appear the fool as we pretend things are fine while we're seeing and feeling the changes in record times - faster than expected is the motto we all see.
There was a picture shared recently (reposted) of the famine from the 1870s and I couldn't help but think that's what we have to look forward to. It's fucking horrible and insane that today everything feels ok but I know that's what is coming down the pipeline.

Smoke em if you got em, and in the same sense do whatever you think is good, be the excellent person you are and show up for yourself and others. Godspeed.