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As an aside, electro convulsive shock therapy is still done. It’s weirdly been proven useful for the treatment of some disorders. But as far as I know, it’s now done with full consent.
But now, as back then, no one really truly understands the full mechanism that causes it to suppress symptoms.
It’s been a long while since I looked, but I remember it being a thing in tails to specifically not resize your browser window or only have it full screen to match a ton of other fingerprints.
Plus since it was a live distro that reset on every reboot it would only have the same fonts and other data as other people using tails. Honestly, I hate that all that info is even available to browsers and web sites at all.