merc

The question is vague enough. This was the first thing that came to mind. ¯\(ツ)/¯

I’m sure there are some insects and deep sea creatures which we haven’t yet observed. So we don’t know anything about them—including their speed.

Virtual particles are still only theoretical. I think of them as a mental model of mathematical objects that arise when we try to calculate interactions between real particles.

I know there are some experiments like casimir effect that are attributed to virtual particles. But, it is possible to explain it in other ways.

There are two posts. The duplicate.

Short answer:

All Lemmy, Piefed, Mbin, and mastodon instances send posts to each other using a common language.

So you can potentially see everything in the fediverse from your instance.