That the U.S. government can arbitrarily take down websites by revoking certificates issued by let’s encrypt? How obvious can it be? I wondered the same thing as OP months ago. We need european alternatives. I think there are some, have some bookmarked somewhere.

Doesn’t have to be people. Lightning is a cause, or a piece of glass that inadvertently acts as a lens and focuses the sunlight… Although that might also be considered as “caused by people”.