> Realistic minimum RAM 16GB When someone says stuff like this what does it mean? A Mac/computer with this much RAM capacity/marker (how would this even be use

> Realistic minimum RAM 16GB When someone says stuff like this what does it mean? A Mac/computer with this much RAM capacity/marker (how would this even be useful in this case?) or 16 or ≈16GB free RAM? Because RAM usage at least on my Mac is another beast altogether and seems nothing will bring down the RAM usage other tham <rm -rf>ing the / (that is if I can and something survives to notice the miracle)