They’d probably be confused as to why it needs charging. “I don’t charge my doorbell, so why the manual process? Is running copper wire prohibitively expensive in the future?”
My digital thermostats have Alexa built in. When I first installed them I went around telling people “I know I live in the future because my thermostat can play the Beatles”.
Also, I have a heated coffee mug. I have legitimately used the sentence “My coffee mug is doing a firmware update.”
I once charged my portable blender using a power bank daisy chained to one of my laptops which was also powering a desk fan, the future is strange man.
“Electrical fire hazard” is definitely something someone from the 70’s would understand.
A few years back I remember reading a headline along the lines of:
“Google Android Ice Cream Cream Sandwich for Galaxy 2 available on Sprint”
And I thought that someone from just 5 years earlier would have been really confused.
Google used to name it’s Android versions alphabetically, using deserts as the name. So Ice cream was their 8th version
ICS was an especially big update because out unified the phone (latest version “Froyo”) and tablet (“Honeycomb”) forks into a single OS.
They had electricity in the 70s. They were missing standards, but they had electricity.
Just tell them our pet rocks are now cameras and instead of a regular wall plug we have a tiny plug for charging tiny things.
Also they had the ability to do this back then, too. It’s just that there weren’t as many devices that needed constant recharging.
Rechargeable batteries weren’t really a thing in the 70’s. For consumer electrical devices, batteries were one use, and anything that plugged in needed to stay plugged in while in operation.
Big advances in battery chemistry made things like cordless phones feasible by the 80’s, and all sorts of rechargeable devices in the 90’s.
Early cordless phones would still destroy batteries with garbage battery management system well into the 2000s.
And they had those fucking stupid 2pin molex connectors that, despite being 4 mm across, had literally 2747329 different keying combinations for different vendors.