> true "heads up display" that you can bet your life on, anywhere on earth, at any time, is just a truly massive undertaking.
At some point you have to make a cost-benefit analysis and look at the bigger picture. For example and in this particular case, yes, spending let’s say 10 billion instead of 22 billion for a rougher solution might increase the dead count on the battlefield in the near future, but if those 12 billion that you’ve now saved go to better free education at home (more engineers in the future to design better weapons) or/and to free healthcare (more fit soldiers in the future) maybe it will all even out at a higher threshold.
At some point you have to make a cost-benefit analysis and look at the bigger picture. For example and in this particular case, yes, spending let’s say 10 billion instead of 22 billion for a rougher solution might increase the dead count on the battlefield in the near future, but if those 12 billion that you’ve now saved go to better free education at home (more engineers in the future to design better weapons) or/and to free healthcare (more fit soldiers in the future) maybe it will all even out at a higher threshold.