Yeah, maybe. Doesn't sound attractive to me though, there are already several ways to authenticate which work fine.

I mean how would this work though, even assuming that technology hurdle is cleared (definitely doubting it, a slightly dark room can totally hose a cell phone photo)?

The Twitter app has to request camera use and then ask the user to do that. What possible benefit would there be for the user?

How exactly would a phone camera get a clear image of your retina? I very much doubt anything like this is possible but maybe I'm missing something

Wiremin is closed source. Why would anyone use that over mastodon?

I thought a lot of people did leave Twitter. I did a few months ago.

Weird flex to brag about not knowing history

"I think this is so silly" isn't alienating? Ok.

Oil companies love that you think any noticeable protest is crazy.

So you're advocating for people being so selfish that the death of a livable environment is secondary to being fully comfortable today?

Yeah why don't they know their place, where no one will notice them???

And if they protested people commuting into a city, a huge source of global emissions, they'd be criticized for that too. People always manage to label protests as the wrong time/place. What they really mean is "protest is fine as long as no one, especially me, is asked to actually pay attention to it."