@bcubeddd@LorenzoDiPi@four_form Very true, but calculations like these help us confirm that this structure holds in QFTs. Also getting to very high orders can help us see further than the 1-instanton sector and we can start to actually explore the alien calculus/resurgent structure of QFTs that we see in QM
Over 650 known cases so far. Most have nothing to do with advocacy. The admin seems to be engaged in a breakneck effort to kick out every foreign student who has had even the most minor interaction with the police possible, including for TRAFFIC CITATIONS and JAYWALKING tickets.
A French researcher was detained on arrival in the US, his computer and phone confiscated/searched, and his texts criticizing Trump's cuts to scientific research were deemed by DHS agents as "hatred of Trump [that could be] described as terrorism." He was deported the next day.