Counterintuitively, when things are non-interchangeable you have to do a lot more swapping
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Replying to @theartlav
Because you would expect to interchange interchangeable things
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Replying to @vgr
Huh? When they aren't, you have to swap things instead of using interchangeables in place, not vice versa.
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Replying to @theartlav
Which means both kinds of swapping are actually the same. The only difference is swapping for use vs swapping for contingency/failure
2:49 PM - 17 Oct 2017
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