Re: Wifi generations
You have a point. Wouldn't it be good to invent a software-upgradeable spec. Something whereby wifi-7 devices will always be able to upgrade - at least for the next few iterations - with software alone. It might make for bulkier, more expensive hardware, but at least it's hardware that won't need to be thrown away when a new spec comes along with faster speeds. There is of course the fact that the hardware doesn't need to be thrown away at all: if you've got a wifi-7 device, it'll still *work* with wifi-8 and 9, just slower.
Analogue TV has been around for a while as you say, but it had many different specs (PAL, SECAM, NTSC) and different variants of each. It made hardware totally incompatible unless it was designed specifically for compatibility. But yes, once we settled on a spec, it did last a while, at least within one country.