XY Han

Freeman Dyson: “A scientist is a person who comes up with new ideas. An engineer is a person who makes something work with as few new ideas as possible.”

Major difference in my mind: - an engineer, given a problem, invents and tries multiple solutions and stops when the solution is good enough. The goal is product innovation and shipping. - a scientist asks new questions, proposes various new solutions, compares them (sometimes with old ones), and writes about it. The methodology must be sound or else peers will sneer. The goal is scientific breakthroughs and technological progress. Both can be called "researchers". Many people can do both: these are activities, not identities. Importantly, most product innovations are built on scientific breakthroughs and technological innovations that happened 2, 5, 10, or 20 years earlier.

I am deeply humbled and grateful to learn that my H-index has now reached 140. I was also honored to see that I am currently ranked among the two most-cited researchers worldwide in the fields of Urologic Oncology and Urology on Google Scholar.   In addition, my i10-index has reached 1060; that is, one thousand and sixty publications each cited at least ten times. I was told that this may represent a world record – what an extraordinary honor!   Nonetheless, these numbers are far less important than the people, mentorship, friendships, and collaborations behind them. This milestone is truly a triumph of team science. I owe immense gratitude to my mentors, colleagues, collaborators, residents, fellows, medical students, and friends who have inspired and supported me throughout this journey over the past two decades.   Academic medicine is never an individual accomplishment. It is ultimately about advancing science and medicine, educating future generations, and improving patient care. If our work has contributed even in a small way toward those goals, then I feel extraordinarily fortunate and grateful.   Thank you for being part of this journey. The best is yet to come!

Bryan Johnson reveals why he uses an umbrella even when it’s not raining and UV levels are low “90% of physical skin aging is from the sun, so this is a UV umbrella protecting me”

The Locations of America's Ivy League Universities

Imagine if Erdos were still alive with a GPT-5.5 Pro subscription and amped up on amphetamines.

Imagine if Erdos were still alive with a GPT-5.5 Pro subscription and amped up on amphetamines.

At the University of Göttingen, Germany, one of physicist Max Born’s young students, an American named Robert Oppenheimer, is making quite a ruckus. He completely takes over discussions and will not quiet down. One of his classmates, Maria Goeppert, is circulating a petition wherein signatories are threatening not to come to class unless Oppenheimer shuts up.

It's very disappointing that information theory cannot explain AI at all.

Actually, this is not new. People have tried overextending info theory since the 1950's. History is just repeating itself. Some examples from Kline's Cybernetics Moment (2015):

It's very disappointing that information theory cannot explain AI at all.