[zerealshadowban]

It seems that the frequency comb laser is easy to diy! "NIST Shows How to Make a Compact Frequency Comb in Minutes" (2013) [0]. I can think of many applications apart from the medical diagnosis they talk about.

The varying mirror cavity is today's innovative step, plus the computation to identify atoms and molecules from the observation of color absorption.

[0] https://www.nist.gov/news-events/news/2013/07/nist-shows-how...

[aj7]

Yes. And a surgeon can remove your appendix in minutes too. A 777 can be landed in a crosswind, in minutes. Why a pass can be intercepted and run back for a touchdown in seconds! All of this easy. I’ve seen it on TV, even.

[cududa]

Oh. Don't bring up surgeons/ doctors in general on here. A shockingly large contingent of people believe the field is "gate kept by exams being too hard" -- which I'm pretty sure just means their parents wanted them to be doctors