As a software engineer, I learned what entropy was in computer science when I changed the way that a function was called which caused the system to run out of entropy in production and caused an outage. Heh.
Why not just set up QR codes that link the location to your phone that the glasses can scan instead of a beacon? You could just as many as you want and slabber them on the wall.
China has better manufacturing prowess than the USA. Their scale is astonishing and they have an incredible ecosystem of components, logistics and labor to make manufacturing hyperefficient. I'm sure the government helps them out too, but one shouldn't discount just how good they are at manufacturing.
With the crowdstrike outage earlier last year it was incredible how many hidden security and kernel "experts" came out crawling from the woodwork, questioning why anything needs to run in the kernel and predicting the company's demise.
Only the base salary counts, not the total comp. That 280k/yr sounds like total comp - includes base+bonus+RSUs. The average base would be more along the lines of 150k-190k.