this post was submitted on 19 May 2026
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What maintenance?
If the server is in the same room with you, you don't need to over build. If it's at the bottom of the ocean, you build it not just with redundant internals, you package reduncancies in full moduales.
If module 1 has a problem, switch to back up, and swap module 1 for a new full module.
They're not opening shit up and exposing it to sea water, everything will be in water proof containers, and you just hook up a couple connectors.
The only "maintenance" underwater will be unplugging something to raise it and connecting the replacement you sank.
As far as heat exchange, it happens all around it. Not just natural circulation, hot water rises and cold water sinks.
Even in a lake with no currents, if it's deep enough that produces flow on its own.