[Bf-python] oh yeah

[ty armour]

If you write physics simulators and tutorials you need to know the
following.

Everything is slightly random in physics. like airflow and heat transfer
and water flow has just a subtle bit of randomness between like .95 and 1.1
ish  of a unit.

so if you have a speed of 100 miles an hour, at any point you will probably
be traveling between 95 and 110, you never get a uniform speed. thats just
not how it works.

That will make the physics simulations much more precise and realistic. and
everything changes over time too like it might not be as wild as .95 and
1.1 but you get the idea.

same with chemicals, same with heat transfer in  metals. that randomness is
the reason why erosion varies over the same stretch of land. its the reason
for mountains and shit like that.
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