Ocean Worlds?

 Now, here's a plot bunny.

So-called Hycean worlds might harbor life...but not, Jim, as we know it.

These are larger planets with hydrogen-rich atmospheres (too small to be gas giants). Their surface is entirely ocean, so a technological civilization is relatively unlikely.

Or is it?

I mean, these worlds can be as hot as 200 degrees Celsius, but we still think there might be microbes in the ocean.

And there are a lot of them.

Hrm.

Thoughts churning yet?