Carnegie Endowment's @SamWinterLevy reveals why the same data center can be worth 20% less in the UK than in America simply because it takes longer to turn on: "The key factor is time to power. The quicker you can get a data center up and running, that just swamps every other factor. That swamps energy costs, tariffs, tax incentives of the kind that many US states are offering. The speed at which you can get this data center up and running is by far and away the most important factor." "UAE…