Steve and Bucky ride again

Rating: 6/10 (2 May 2018)

Avengers: Infinity War is a whole movie. Actually, it's a movie and a half of a half of a movie, because it comes in hot at roughly 150 minutes of punch-you-in-the-face, stab-you-in-the-chest, blow-your-hair-around, melt-your-skin-off, shave-your-back action. Phew! The movie should come with a moist towlette or two, or at least a travel-sized pack of tissues.
Thanos is big, bad, and blue (I think). He believes, much like I do, that overpopulation and scarce resources lead to strife and suffering. Instead of using infinity stones to do something like, say, increase crop output or resiliency to pests, he decides to harvest the infinity stones and put them into a really cheap looking metal gauntlet. Then, at the flick of a finger, he can make exactly half of the universe's (humanoid) populations flake away like chaff in the wind.
This begs several questions, of course. First, what if there are an odd number of humanoids in the universe? Do we get to round up or round down? Would that be on a universe, planet, or spaceship basis? Do the infinity gems use a truly random algorithm to determine which half die? If it is a psuedo-random algorithm, can we deduce a non-stochastic, deterministic pattern?
Next question: once half the universe is gone, is that it? Do we wait for it to sort of build back up to crisis levels and then flick the fist finger again? Or do we eliminate half the population every month or so, logarithmically and asymptotically reducing the universe's humanoid population to zero?
I digress. Bucky and Steve do not kiss, not even with crappy CGI.