[bsd44]

I once found out that that the reason why people parked next to my car can't unlock their cars is because I had my rear parking sensor switched on. As soon as I switched them off, their car fobs would start working again. I had some custom Chinese-made rear parking sensor installed. So nothing "mysterious", just radio frequency interference.

[globular-toast]

I mean, it's not a mystery to you, but it's certainly a mystery to most of the general public. You can't see radio waves and most people have no idea that their car remote is operating in the same space as dozens of radio stations, GPS, Wi-fi etc. The vast majority of the population is quite happy to accept technology as magic.

[bsd44]

I didn't mean "mystery" as "unexplained", I meant "mystery" as "magic, conspiracy, aliens..." type of interpretation which general public seem to take on lately.