Believe it or not, I still have a pair of (well-worn) Adidas 1’s, circa mid-00’s
These babies have real-time adjustable heel pressure absorption, managed independently by small computers in each shoe, to adjust how soft or hard your foot hits when running.
I used to wear them for fun when travelling and oh what fun I had at security… “Sir, you do realise there is a battery and an electronic circuit installed in both of your shoes?” 
Well popular with the growing queue behind me.
I’m sure modern day shoes are way smarter and I don’t deserve to wear them!