they might just carry on until this planet is molten

The odds of true runaway warming are very low, the planet has both been much hotter and had much higher CO2 levels in the past. The Holocene is actually a cool period, geologically.

We're just going to make it too hot to grow enough crops to feed the world.

it seems pretty likely that microprocessors will survive us, and give a BIG jump start to any species that follows. literacy seems to be a longer shot, but still a possible stepping stone for some other organism to take over our work. my money is on fungi to figure out microprocessors. if not them, then plants, especially "weeds". finally, ocean mammals might be able to work some of the junk we've made and cargo-cult themselves into the information age.

i really am hopeful for life on earth to survive the death of Sol.

Is there any reason you would think me not producing art means that humans haven't?

Maybe he's a master in ASCII art, what do you know

We also managed to kill off almost all the large animals thousands of years ago, come to think of it.