> I've been hearing that the death of the planet has been 10-30 years away . We're still here.

That argument is solely based on survivor bias.

Also, critical systems are now in such a state of brittle disrepair that it wouldn't take much for everything to break down unexpectedly.

Currency (store of value), Fuel/Energy, Logistics (trains/ cheap shipping), and Food (farms), take your pick.

Any single one of those areas can lead to a cascading failure.

Most people also don't realize as the world heats up you have to suddenly start dealing with problems only commonly found in the tropics but now at the northern latitudes.

If you've read the Wealth and Poverty of Nations, you'd know why the northern latitude countries were able to develop rapidly whereas the tropical latitudes were averse to human life and husbandry.