[offtopic again]
It does. Imagine you would have to trade a cow for 100 games here instead of some money. You would have to bring that cow to MT from where you are. You would also have to get a cow and give someone three sheep for that. So you would have to find three sheep, which someone else gives you if you let him live at your place for a few days until he found another living place...
The principle of money is extremely helpful

Of course, it has been made more complicated than it should be, but the idea itself is simple
[/offtopic]
[ontopic]
Then I can't imagine anything for 1.
And for 2. - I don't think

is correct. Once again, it is not slow, but only slows Igor down.
But what else can be called slow?