nothing worthwhile, as it’s not allowed (for a good reason)

Valve was a completely new company then. They weren’t going indie, but Sierra didn’t pay them for the remake of Half-Life. In the documentary they talk about financing it by creating Half-Life: Day One.

before making flying expensive you need to provide actual alternatives first, or else you are risking of electing populists who will reverse it quite quickly. quite a few countries in the EU still don’t have good train service.