Just had a quick 1 hour chat with ChatGPT about this.
We discussed how long it'd take us to reach the planet with current most modern spaceship/rocket (11 million years).
What kind of life it'd have since it's presumably all water.
What kind of species evolution could take place given our evolution history took place out in land.
Recently read a study that shows that electrical eels can modify genetics of other species with their electrical shocks, so, if K2-18b has eels, what kind of genetic changes could've taken place to evolve species in an all water planet, apparently whatever organisms might be thriving could potentially deceloped a wave based for of communication.
If there's no land, how species could evolve without tools like fire? Where do they get their nutrients? Photosynthesis!?
Imagine animals that makes photosynthesis!
What stage in the evolutionary eras could K2-18b be currently at? ChatGPT suggest Proterozoic.
How could a planet with so much water have water without land or trees to ease precipitation? Apparently you don't need land to get rain, all you need is volcanoes, even underwater!