No, I learned this at a Wolfram Study Group.

I found something helpful here: https://mathematica.stackexchange.com/questions/559/what-are-the-use-cases-for-different-scoping-constructs and here https://community.wolfram.com/groups/-/m/t/495564?sortMsg=Flat

I thought this was an interesting comment In practice, my advice would be to avoid using Block unless you know quite well why you need it. It is more error-prone to use it for variable localization than With or Module, because it does not prevent variable name collisions, and those will be quite hard to debug. One of the reasons people suggest to use Block is that they claim it is faster. While it is true, my opinion is that the speed advantage is minimal while the risk is high. I elaborated on this point here, where at the bottom there is also an idiom which allows one to have the best of both worlds. In addition to these reasons, as noted by @Albert Retey, using Block with the Dynamic - related functionality may lead to nasty surprises, and errors resulting from that may also be quite non-local and hard to find.