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pozorvlak : modelling   4

Floating point error is the least of my worries
Modeling error is usually several orders of magnitude greater than floating point error. People who nonchalantly model the real world and then sneer at floating point as just an approximation strain at gnats and swallow camels.

maths  modelling  computers  programming  floatingpoint 
8 weeks ago by pozorvlak
Zeroing Out | Don't Worry About the Vase
It is much, much easier to find a bias in a complex model, than it is to build an equally good model.

“I built a better model of Google’s future profits than the market” is a hard sell. “I found a factor the market isn’t properly accounting for” or “I got this news and figured out what it means before the market could price it in” is still a tough sell – it’s Google – but it’s less impossible.
interviews  rationality  modelling  finance 
march 2019 by pozorvlak

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