I wonder how many historical figures went through the same thing? Who do we know for their contributions to field X, when 99% of their life was spent contributing to field Y?
This little known fact is so embarrassing to some institutions [2], that they made up a new word "chymistry" in order to further obscure the issue and not outright admit the obvious.
[1] http://www.newtonproject.ox.ac.uk/texts/newtons-works/alchem...
[2] https://webapp1.dlib.indiana.edu/newton/project/about.do
[3] https://www.amazon.com/Newton-Alchemist-Science-Enigma-Natur...
Is there a reason to expect that someone who wanted to investigate the laws of the composition and reactivity of matter, in the late 1600s/early 1700s, would end up studying chemistry rather than alchemy? Sure, Boyle had introduced “chemistry” as an idea in 1661 (before Newton was born), but I imagine that alchemy would still be quite active in the late 1600s as an academic “field”, with many contributors already late in their careers studying it; whereas chemistry would have been just getting off the ground, without many potential collaborators.
Your point has been brought up before -usually as an attempt by established institutions to whitewash and explain away Newton's idiosyncrasies- but there is no evidence whatsoever to back it. On the contrary, what we know (and there is a lot we do know thanks to his writings) about Newton and alchemy absolutely indicates him being immersed in the Hermetic worldview and alchemical paradigm. Clearly, Newton was practicing alchemy not as a way to look for novel techniques or as a way to bridge the old and new worlds together, but primarily because he was a devout believer.
Newton -a profound genius- stood at the threshold of two worlds colliding. He was also a groundbreaking scientist in optics/mechanics/mathematics. He was aware of Boyle's chemical research. Knowing all of that, he _absolutely_ chose to dedicate his life to alchemy. That is immensely interesting.
"Much of Newton's writing on alchemy may have been lost in a fire in his laboratory, so the true extent of his work in this area may have been larger than is currently known. Newton also suffered a nervous breakdown during his period of alchemical work, possibly due to some form of chemical poisoning (perhaps from mercury, lead, or some other substance)."
https://en.wikipedia.org/wiki/Isaac_Newton%27s_occult_studie...
"Taking mathematics from the beginning of the world to the time when Newton lived, what he has done is much the better part." - Gottfried Leibniz
For years, English scientist Isaac Newton and German philosopher Gottfried Leibniz both claimed credit for inventing the mathematical system sometime around the end of the seventeenth century.
Now, a team from the universities of Manchester and Exeter says it knows where the true credit lies — and it's with someone else completely.
The "Kerala school," a little-known group of scholars and mathematicians in fourteenth century India, identified the "infinite series" — one of the basic components of calculus — around 1350."
https://www.cbc.ca/news/technology/calculus-created-in-india...
https://en.wikipedia.org/wiki/Kerala_School_of_Astronomy_and...
However, calculus proper (derivatives and integrals of general functions, and the connections between them) did not exist until Newton and Leibniz. Other mathematicians made important steps towards it earlier in the 1600s, and if Newton and Leibniz had not existed, others would have figured it out around the same time.
I'm not a historian, but a few months ago I spent some time analysing one of Fibonacci's trigonometric tables (chords, not sine or sine-differences). Aryabhata's sine-differences were much earlier.
It's hard to think of many famous scientists that weren't already well known in their field. Some stand out. Einstein, for example, had a fairly lackluster career until his Annus Mirabilis papers. Mark Z. Danielewski (House of Leaves) bounced to and from various jobs. But largely, the idea of the brilliant outsider is like the 10x engineer. It exists, but is rare.