[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