Exactly. When I see people getting themselves tangled up with parallel programming, it's because they can't accept the performance trade-offs of simple, tracta

Exactly. When I see people getting themselves tangled up with parallel programming, it's because they can't accept the performance trade-offs of simple, tractable solutions. 90% of the time, the inability to accept the trade-offs has nothing to do with actual performance measurements and everything to do with groundless assumptions that certain techniques are always way too slow.