[samwillis]

Oh exciting! That’s a billion dollar invention if you crack it.

Do you mind sharing who the team is? Do they have any literature available?

[smiley1437]

Rockley Photonics is working on this:

https://investors.rockleyphotonics.com/news/news-details/202...

There was a press release last year because they're an Apple partner. I have high hopes but I keep remembering that Theranos had a lot of promise too.