Power scaling is the practice of comparing and ranking the physical strength, speed, durability, and abilities of fictional characters. The goal is to figure out their maximum speed, strength, and other abilities, usually by using science and math.
For example, in The Boys TV show, we know MM said Homelander can lift a dozen Mack trucks, which means, using math, we know he can lift at least 552 tons. He also moved faster than a C4 explosion in Season 1, so he can move at Mach 24.
In Season 5, A-Train's top speed was Mach 195 when he was running away from Homelander, and Homelander was catching up with him. So, we know Homelander's top speed is at least Mach 195, too.
When it comes to durability, that can also be scaled because there are different levels of durability. For example, Luke Cage might be bulletproof, but he's not completely invincible, and his internal organs can still be damaged. Captain Man, on the other hand, can swallow the core of a nuclear missile and survive.
So, what's your opinion on power scaling?
Me personally, I like it, but I mainly like it because you can take a character with multiple powers and, depending on how you scale them, they can still be street-level if you want.
However, if you're going to use power scaling, you need to be consistent with it. If someone can only lift 500 tons, then they shouldn't suddenly be lifting a massive iceberg. If they can only run at Mach 100, then they shouldn't suddenly be running at the speed of light.
In a universe where a man turns into a giant green monster that can lift over trillions of tons, and another man can make armor that makes him omnipotent, someone turning their body into metal or Kevin Levin flying is the thing that makes the least sense?