Ian Mulvany

November 17, 2024

I learnt two things today that I’m surprised I didn’t know before.

1) Hawking radiation is not what I thought it was - https://www.threads.net/@spaceaccordingtoskylar/post/DCdGRiiv5Iq?xmt=AQGzOpg_N0-0T9fDfXrx93xVU-uMRZ4-_UCPelTJV5APTw - rather than being mass lost to particle antiparticle pairs, it’s to do vacuum states being distorted in curved spacetime, which makes them look lint why are creating a radiation bath! 

2) Bankers rounding - https://stackoverflow.com/questions/45223778/is-bankers-rounding-really-more-numerically-stable, round to the nearest even number, rather than rounding down, or rounding rounding up. This can prevent accumulation of errors (computational heating) in large simulations. 

About Ian Mulvany

Hi, I'm Ian - I work on academic publishing systems. You can find out more about me at mulvany.net. I'm always interested in engaging with folk on these topics, if you have made your way here don't hesitate to reach out if there is anything you want to share, discuss, or ask for help with!