alt Hacker NewsEven if they lower costs to 0, it means nothing
Topline growth matters more than costs.
Mathematically - There is no limit to topline growth But cost cutting has a ceiling, which is the current costs.
You can only make(save) so much money with cost cutting
Topline growth is upper bound by total energy in the universe though.
Topline growth is more realistically bounded by the number of people willing to take an Uber at a given price. You can't expand forever.