[idea] noise reduction
Things that separate signal and noise
1. math filters
kahlman
gradient descent
fast fourier transform
2. sound filters
electronics
mufflers
baffles
3. air filters
membranes
masks
thermal filters
4. water filters
desalinization
membranes
5. time filters
history
generations
buffers, e.g hours, days, months
6. electronic filters
circuits
7. curating
social media
books
8. cohesion
perhaps at expense of creativity through diversity (see Scott E Page's The Difference https://www.amazon.com/Difference-Diversity-Creates-Schools-Societies/dp/0691138540)
interesting that diversity can be seen as a both a noise and signal increaser
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