It's a very short article, but I don't think the underlying technology is as underdeveloped as you think. Here is a more substantial article: https://www.nanow

It's a very short article, but I don't think the underlying technology is as underdeveloped as you think. Here is a more substantial article: https://www.nanowerk.com/nanotechnology-glossary/nitrogen-vacancy-center.php https://www.nanowerk.com/nanotechnology-glossary/nitrogen-va... Even if you ignore the quantum computing / quantum information parts of the article, I think it's clear the underlying technology has promise as a sensor.