exscape

Same here. I switched to DDG last year, but had to go back within two weeks; it was just too annoying.
Google search results have indeed gotten pretty bad, but I’ve yet to see anyone surpass them.

No, because that “some point” will never happen. There is no last nine to round up, because if there were a last nine, they wouldn’t be infinitely many.

There are many different proofs of this online, more or less rigorous.

No, it’s not. I have never brushed my teeth too hard and have always used very soft toothbrushes, but I used to brush for 6-7 minutes, and my gums have suffered for it. Way too much of my teeth are now exposed, which is both ugly and causes sensitivity.
In the long run, if one keeps this up, teeth will start falling out.

Don’t overbrush.

They’re more than good enough though. The like-to-dislike ratio it shows always lines up with what you’d expect the video to have.

Is Fennec just the old name, orn something different?

I use Firefox on Windows and Firefox on Android.