Re: Reg 'fridge
I actually did my University last year project on this in 2000. It unfortunately wasn't viable back then, but the cost and supply chain/blockchain availability makes it way more viable than it ever was. The other problem back then was the network connectivity and IoT capability. The latter of this article shows this still is in its infancy.
I've worked with a number of power groups using SCADA and even their enterprise industry grade boxes are poor protection wise and so any hope of customer grade being anywhere near protected is a pipe dream.
I imagined a connected kitchen that a) could determine the power requirements for food in microwaves and ovens, b) could actually start cooking food based on your remote commands and c) would give you meal recommendations based on what you had in your house and the expiry dates etc.
I wanted to patent a) but there was already ambiguous submissions that would have contested it.