Whenever i hear about a degree in X, Y, or Z in engineering or science…i wonder what they have contributed lately to understanding paired photons, the existence of a singularity in a rotating black hole, or even error correction in a quantum computer….. and…it’s crickets….
There are plenty of things we don’t yet fully understand….maybe copper wire…. which is never 100% copper….might….just…. be….one of them…..
It's not just a degree, or two, or a PhD or 20+ years of research after the PhD in a single field, they still don't know, and some we will never know, thankfully, but humanity will keep plugging along.
I saw a good show once about ten years ago about a humble guy, about science, and those who attempt to pretend to "know it" ; (I tried to look up his name but there are a few with the same credentials, apologies)
This aspring university student got a biology degree, decided he always loved honey bees, so dedicated his masters to honey bees, researched honey bees some more and submitted his dissertation on honey bees to earn his PhD. He researched honey bees again 50 hours a week for another 30 years, outside of unfortunately having to teach some lectures to be employed by the university. On the weekends for fun he researched honey bees. After retiring he started to focus on his great love and hobby- researching honey bees. Another 10 years later I believe he did some speeches on honey bees (for fun) and one of the questions was "you are one of the world's experts on honey bees, and have been for decades, how much more is there to possibly learn about honey bees?" He said "I have dedicated over 50 years of my life to honey bees, and I probably only know 1% of what there is to know about honey bees."