Originally Posted by
Carbonfiberboy
Because you can do stuff indoors which you can't do outdoors. Plus it's 40° and raining now and I'm just not feeling it. Plus cleaning the bike after a wet ride takes time I could better use in other ways. The worst is actually immediately after a rain. Real rain rides are like a car wash sans soap. Anyway, you get the idea.
Apparently that's not the OP's reasoning, however. He doesn't seem to ever ride outdoors, seems to vehemently eschew any real-world performance or application, and thinks mixed-intensity training robs one of their ability to see how fixed intensity training works.
So what you say makes sense. Unfortunately, none of that has anything to do with the OP or any of his diatribes.