“That’s how things used to be done in personal travel too: if you wanted to travel from Europe to Australia and back in the seventeenth century, it would have involved a huge project costing vast sums of money, requiring years of planning, and carrying a high risk of death. Now we are used to the idea of transportation as a service (TaaS): if you need to be in Melbourne early next week, it just requires a few taps on your phone and a relatively minuscule amount of money.”