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Sure, designing modern integrated circuits isn't easy. However it still is way easier than what you need to manufacture them. Design of digital integrated circuits is commonly more understood with information being readily available.

In theory you could gain the knowledge to design an early 1990s CPU at the logic gate level by reading some books and doing a bit of research, on the other hand actually manufacturing such IC would take considerably more effort.

With outdated browsers it does make senese. A bit more surprising is the image or video decoding exploit, considering that I'd assume those would usually be done in hardware rather than by some userspace or OS level code.

The problem doesn't seem to apply to other Apple devices. The iPhone 11 I've been using every day for the last 6 years is still working exactly the same as when it was new, all while still getting the newest OS updates.

Can someone who has knowledge about this explain how a PC with "unsupported OS" will actually get attacked just by web browsing and being connected to the internet? Your PC will always be behind NAT, it'll never have a public IP, therefore someone port scanning it can be ruled out unless it's maybe some infected device on the local network? It's normal in modern web browsers that you can just break out of the javascript sandbox and get OS level access by running an OS that hasn't been updated for a few years? If you're running an exe that exploits some known userspace security issue of older OS versions how likely is it that this exe doesn't have any other malicious code that'd cause issues even on an up to date OS?

>Ask HN: Why is nobody using [obscure niche technology from the 80s]?

>Why [popular technology] is [unexpected opinion]

Ah yes. It appears that nothing has changed in the last decade for the Android ROM community. Still the same experience as downloading a custom ROM from "XDA Developers" for your HTC phone in 2016 and then finding out that it can't make phone calls and is bugged beyond comprehension.