It's like how there are so many things named after Euler. The joke goes that everything in math is named after the second person to discover it after Euler, but many things are named after him anyway.
Milnor is a titan in his fields, so any conjecture he has made would be called Milnor's conjecture.
> The joke goes that everything in math is named after the second person to discover it after Euler
This was one of the stories on my calculus book in college
I loved reading the brief explanations about the history of the different formulas and discoveries
In fact, reading those stories earned me a free “extra A” in class for remembering Rolle’s theorem. I only remembered it because Rolle’s story really caught my attention. After coming up with his theorem, he became a big critic of calculus, even though his theorem is one of its crucial building blocks
Milnor is a titan in his fields, so any conjecture he has made would be called Milnor's conjecture.