Today was all computers all the time. Piet Hut (IAS) came in for the day to have lunch and discuss ambitious coding problems, including the development of enormously complicated code, and the realization of incredibly complex constraints in constrained realizations. Hut is working on some ideas for collaborative coding which, if they pan out, could transform open-source and multi-developer projects. He is also doing some very ambitious simulations that combine stellar evolution with stellar dynamics in dense environments (such as the centers of globular clusters).
I also worked on the backups for the astrometry.net code repository. We have multi-site, off-site backups. If you don't, you are making a big mistake (trust me, I know from direct experience).
Hogg, do Piet's newest simulations include a massive central object (i.e., a large black hole at the core)? I've gotten the impression at various meetings that people are gearing up to do this; I'm hoping Piet is one of them.
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