Trust me, we (the techies) are in strong denial about how much time we have left. I've been programming since the late 1980s and have learned everything from VHDL to Clojure and give us till no later than 2040. Realistically, more like 2030, due to the billions of dollars being thrown at AGI for finance and other monetizations. Of course, money won't be worth anything after that, but I doubt that will stop anyone.
In my own life, I've decided to transition away from shared truth towards manifesting the reality that I want to live in. I try to help people now, I meditate a lot about humans becoming aliens, I try to be in the moment whenever possible and be thankful for consciousness. But I no longer put my energy into the ego-based materialism that captured tech. Since wealth inequality can't be stopped, I feel that the only salvation lies in nonattachment.