Simulation Nodes

Simulation nodes is a new geometry nodes node, that allows recurring nodes to affect objects.  

One person who is an excellent Tutorial Maker,  MTR Animations, Has an awesome Tutorial on Simulation nodes making bubbles.

Check out his other geomentry node tutorials also, he explains why he uses certain nodes, and just listening to him, you start to 

Understand why you would use certain geometry nodes.   His CSV node explanation and Use case was inspiring. 

This is something the Bubbles Tutorial is helpful for:

Cheers.

Antonio