Listen, my claim is simple: submerged data centres will give rise to richer, more complex ecosystems around them (due to the extra energy, heat convection, increased entropy etc), in a surprisingly short timeframe. Because that's what life's good at.

You disagree, giving reasons I find irrelevant here (a data centre won't make a dent in the average ocean temperature, and certainly won't make it "the highest-temperature location in the ocean"), but I respect that. The good news is that the impact will be easy to evaluate once deployed.

In fact, testing the data centre's impact on the surrounding ecosystem will surely be a mandatory component of any such project, so we'll get to see the hard data. Let evidence be the judge of the "absolutely nots".