I’m not depressed (at the moment, well maybe a little), just feeling philosophical.
Edit: the idea of this came to me because I was pondering why people fight so hard to beat diseases and live a few more years. What are they planning to do? Why exert effort just to be here longer when you don’t have a reason?
Just why?
It’s a bit ridiculous to me why you’d think that we’d be the last humans to exist. Habitable zones will keep existing after climate change kills 99% of the population. Even full-scale nuclear war will leave most dead, but not all.
The remainder will probably keep reproducing and survive. Even 0.001% of our current population would likely mean humanity would continue.
What else do you think would make humanity 100% extinct?
I think the answer to your last question is “doomsaying”. Its a fucking cult and its hardwired in the Lemmy community. I agree with you though. Society might fall, a large portion of humanity might die, but we will not go extinct. We’re cockroaches. We don’t go out easily.
I’m not trying to convince you on this, but this is my personal belief:
There are runaway reactions already being triggered in the atmosphere that will make the planet hotter and hotter without stopping or slowing down for millions of years. Where are you going to live when the minimum temperature is 60C or higher? A difference of 30C or so is enough to make life impossible for us but isn’t even a rounding error compared to the temperature range of a planet. Look at Mars.
Will it happen in the next few centuries or even millennia? No. But those timescales are miniscule compared to the life of the Earth or the lifecycle of an entire species.
We will be the cause of not just climate “change”, but pretty much a life reset. Like the asteroid. EVERY animal larger than 10 or so cm will die. There’s no way out of it. This is the great filter.
It might be interesting to you that the total number of humans who have lived and died is about 110 billion. So in the last 100 years or so 10% of all humans who ever existed were born.
And regarding the warming for millions of years, I think we had multiple periods on earth with higher CO2 levels. No humans existed back then but life in general was quite fine. We are at about 400 ppm right now. https://en.m.wikipedia.org/wiki/Carbon_dioxide_in_the_atmosphere_of_Earth#/media/File:Phanerozoic_Carbon_Dioxide.png
Not to be too optimistic, we are heading for an unprecedented crisis. But reducing emissions matters because we are not going to go inevitably extinct.
Yeah, we have hard times ahead, and probably a lot of people will die, but I don’t see humanity go extinct any time soon.
I recommend to watch “A case for optimism” from Melodysheep , which goes into that a lot more.