I went down to Los Angeles yesterday for the March for Science. Although there was also a march in Santa Barbara, I wanted to see a larger scale event. In LA there were 50,000 people registered, and I could believe there were that many there! It was packed, and the atmosphere was great. Amazing to see so many people care about science! It was a lot of fun to see the creative signs people had put together.
My impression was that actual scientists were a pretty small fraction of the participants. Not being a scientist has some advantages. As a non-scientist, you can feel comfortable with the sign on the left, which is a good sign, but I can’t help but be bothered by the fact that there are in reality no elements “T”, “M”, or “Es”. The sign on the far right is definitely from a scientist: it takes a physicist to recognize a Hamiltonian! Wish I had thought of that myself.