Modern garbage collection is done more evenly:
http://en.wikipedia.org/wiki/Garbage_collection_(computer_sc...
Perhaps the brain could do something similar.
http://en.wikipedia.org/wiki/Garbage_collection_(computer_sc...
Perhaps the brain could do something similar.
However, there are anecdotes of rare people that subsist on "low pause" sleeping. Allegedly, Thomas Edison had a 24 word day and frequently cat-napped. Contrast that with Einstein who allegedly slept 10 hrs a night.
For modern garbage collection systems (e.g. the JVM), there is no single setting that is best (or even acceptable) for all applications. The same is probably true for sleep patterns.
Evolution does not consider every possibility. And when it does consider one, it doesn't necessary "implement" it well.
(Or would that just render us faster, but much less flexible and adaptable?)