That's incredible. Theoretically you could even wear gloves and the saw would stop as soon as it reached tissue. Although, some sort of conductive work gloves might serve as an additional safety layer so it doesn't even have to hit tissue.

In general, it's a bad idea to wear gloves when working with spinning tools. If the glove snags the wrong way, it can pull your whole hand into the tool.

For sure, but in this scenario I doubt snags pulling anything would be possible. In the video it was stopping the blade before it could even break the skin on fingertips.

If the safety mechanism failed though, the resulting injury would be far worse as a result of the gloves, so it might not be worth it in that regard.

The gloves could pull the hand along the trajectory of the blade.

Not if the gloves are conductive too.

Most gloves make a point of not being conductive.

Which would be why I explicitly suggested conductive gloves in my first comment.

Ditto rings, for the same reason.

The rules in my dad's wood shop when I was growing up were pretty simple: any jewelry (necklace, bracelet, watch, rings, etc.) had to be removed, and eye protection had to be on before a tool could be turned on.

That is pretty impressive. Sadly, I'm limited to shared workspaces given that I'm in an urban area. Good to know about for whenever I decide that I'm sick of the city.

The table saw at the maker space / shared woodworking shop near me has a SawStop, which is a pretty good idea given the varied experience levels of users in a community space. If that's really what's keeping you from pursuing an activity of great interest to you, consider checking to see if the workspaces near you are equipped with SawStop. Even if they're not, you might persuade them to get one. Especially if you're willing to chip in.