[alias_neo]

Am I right in thinking that 4K and 8K are UHD 4K and UHD 8K?

I guess this debacle goes even further back with VHF and UHF.

Why do we insist on using such words when they don't clearly have an order?

Is "very" larger than "ultra" and where would "super" fit in there?

[anikom15]

Usable frequency is just on one axis, and is bound by the physical properties of the atmosphere, so there is at least a limit.