A couple of words went missing from my post, such the sentence you quoted didn't end up meaning what I intended to say
> steam from one reactor core piped to different turbines
I did NOT intend to say that steam from one reactor should be piped to multiple turbines. As you indicate, that could well create additional, unnecessary complexity.
What I intended to say is that you should be able to replace or service the turbine module without digging into the reactor cite module, because they are connected only at limited points. If you've worked on cars much, you may have spent 30 minutes replacing a water pump on an old truck, and six hours replacing a water pump on a newer car. That's what I was talking about, but missing words garbled my message. Clear lines of separation between different modules, with well-defined connections between them, should make maintenance simpler and faster.
Sorry about the dictionary shit, but you still kept on about "lots of little reactors" being a bad idea after I stated plainly that I wasn't suggesting such a thing.