Yes...
In order to improve the heat transfer to the coolant, we have to try to reach a high Reynolds number (aka turbulent flow). Since 99.9% of us can't do that, because it requires a veri high pressure pump, we use jet inpingement to "throw" the coolant at the baseplate, which results in a turbulent area, similar to the above. Turbulent flow, without the high pressure pump.
Add fins, whose purpose is to spread the heat further, from the baseplate, and you'll reduce the resulting CPU's temp.
Combine both (above) and you've got an ideal waterblock. That's what Cathar did, yes.
But it can still be improved
