20 years ago there was a laugh to be had by suggesting that in the future you’d be able to buy shoes with embedded GPS. If an elderly parent went missing you could just Google them. Gran Google. Fast forward to 2026 and you can buy GPS shoe insoles on Amazon with GPS for £11.40 (last time I looked they were £129). And this morning a friend had her elderly father walk out of a hospital when he wasn’t supposed to. GPS tag in his wallet sorted that.