oh thanos how wrong thee ass-brain let me count the ways

Dear Thanos,

The candidates for Spectacular Lack of Common Sense have been announced, and we are pleased to let you know that you are in the top in the running  . On hearing about your snap-kill-half exercise, our judges got so energised as to write down the following -

 a) world population would reach its current levels within one iteration of the snap - you aren't affecting birth rates. 

b) inaccuracy and imprecision - what if the snap killed a bus driver or a pilot piloting a plane across the Atlantic ? it wouldn't be a fair half-half chance, a lot more people would die flaming deaths than calculated for .

c) killing half the civilised technical world would have terrible repercussions more than killing half the rest.  Resulting plagues would wipe out more people than you could imagine.

d)  if you had all those hocusy-pocusy coloured stones, why not make more food , or make humans colonise more planets ? I agree, putting right ideas into human heads is an uphill battle, but still, why not transport half of them to some other planet which has life ... ?

e) we can't get over this one - the western world is heavily mechanised. Randomly making people vanish would ensure that large machines would go careening around , smushing out innocent bystanders left and right - think runaway trains, cars carroming into each other on the high way, cranes dropping loads, ships running aground , etc etc

f) we'll be back