I can’t wait until high res 24/7 lifelogging of audio and video is common so that these sorts of things are documented regularly.

Not sure why you're downvoted. It probably has to do with the implication that it might be a government or a private company that is doing the logging, but that doesn't need to be the case. We could develop a culture where we record everything around us and store the recording on our own devices, accessible only by us.

There was an early Black Mirror episode exploring exactly this scenario. The social consequences are frightening.

That episode was good, but the book/film The Circle I think covered this type of scenario better (even if the movie adaptation did leave a little to be desired)

the lifelogging will probably have a EULA that prevents everyone from using any audio or video in a legal dispute

I don't understand the EULA part. Are you saying that if a company sells eyeglasses with 24/7 audio and video recording to an microSD card, then that company would have an interest in adding a EULA that prevents using their own devices in a court case against someone else? Or are you saying that a hospital would have an EULA that prevents one from using any recording one might coincidentally hold of interactions with them in a court case?

The company won't be selling a 24/7 microSD recorder, it'll be selling a 24/7 cloud recorder, for the usual bullshit reasons that are ostensibly about convenience, but in reality are about securing recurring revenue. Since you won't be using a product but a service, there will be an EULA, and the company may not want their data (at this point it isn't your data anymore) trawled in random court cases.

I don't think an EULA will override a warrant or subpoena.

Might not, but EULA may stipulate that breaking it will cause termination of account and deletion of your data. It would be similar to forced arbitration clause, as far as I understand them - i.e. it's not that you can't sue the company, it's that you'd better not, if you want to retain your account.

In the US you may be correct, but there is other places on earth where this sort of corporate behaviour is not okay.

That's good for the other places (and I'm happy to live in one), but here we're talking strictly about the United States, as the article pertains to US federal government matters.

But they won't show the EULA until after I've agreed with it, so it'll be invalid!

Deepfakes.

That sounds like a textbook case of trading away privacy to get security. No thanks.

How do you show that they didn't tell you?

This could be why "serious contracts" have a place on each page for you to initial.

You swear to it in writing or in the witness box.