[nonrandomstring]

Fluid mechanics has always seemed so complex that scientists joke about it. Supposedly [0] Werner Heisenberg and/or Horace Lamb quipped that when they died they'd ask God about relativity, quantum electrodynamics and turbulence... and they didn't expect he would have an answer for the last.

[0] https://boards.straightdope.com/t/did-heisenberg-really-say-...

[zihotki]

On one hand it's very complex, on the other hand it's rather simple if you don't go too deep. It's all about the scale of the map you work with.