Those are natural limits, though. If I go to an all-you-can-eat buffet but just had my wisdom teeth removed, it's not their fault that I'll cry in a corner while delicately nibbling a small bowl of pudding. They were willing to let me eat more, even if I wasn't capable of it.

If the same buffet made you wait 2 hours between plates, then it's no longer realistically an all-you-can-eat buffet.

Taking the analogy to an extreme, if you went to an all you can eat buffet, it would only be open 24 hours a day and there is only so many times you could go through the line and the kitchen can only cook so much food.

If the restaurant is crowded, you’re going to have to both wait longer to get through the line and the kitchen won’t be able to cook enough to satisfy all of the customers.

There is also a known limit of how much data can be transmitted over a certain frequency and only certain frequencies are amenable to data.

For instance, T-mobile was infamous for not working well in buildings because the spectrum they were using couldn’t travel through buildings.