Well, to be fair, on a couple of points?
A) Yeah, I mentioned Tim ... but that's to just illustrate the CONCEPT of scaleability
B) And true, it's a first world problem to have right?

I mean, everyone wants to have the problem, that they are scaling out at size, on a market.
Just be aware, it can happen in ways that some don't expect. I know some who scalped for ticks on the /ES, and the way they were reading the flow to do it? Even though the /ES was plenty liquid? They ran into problems with the thickness / thinness of the order book, to be able to execute at the size they did so (They would wait for quiet flow on a key pre-planned structure to scalp). But as they grew and grew in their size? 300 lots ... 500 lots ... it became harder and harder to trade that way. It hurt their performance, and they went to another market that was deeper and thicker (Treasuries)
And it can sort of mess with your head, however it happens.
I know of another case, someone dealing with deep ... high delta Equity options. At a simple $1 M block, they were starting to scale out. They couldn't get their size, because they were literally becoming a size of the market, and couldn't get filled at size. They sorta went a little nutty on it, thinking ALL market liquidity was drying up, and we were headed for 1932. When in fact? They had scaled out of the strategy they were doing.
It happens faster than you think. Tim was just sort of a "metaphor" of the phenomenon, and it DOES happen in other markets.
As a matter of fact, it affected my firms direction. We had a strategy we'd love to use. But unfortunately, it uses the YM, and the size we'd need to put on ... WHEN we'd need to put it on? We just can't use that strategy for even a measily $11 million. It scales out at $10 M. The YM is too thin for it.
Just, be aware I guess, that it's a monster looming out there, and it sneaks up on people in ways they don't expect.
But then again, it's a first world problem to have I guess.