This is going to be a supercomputing project, unlike the ones that we're used to seeing. One has to remember four things.

______A) Existence of something like a 'nuclear' power supply generation capability.
______I.e. 'Power' for things like fabric and interconnection, is different from land-based systems.

______B) Cooling, in the environments where a supercomputer like this, could be deployed,
______could be made extremely efficient.

______C) The existence of a real 'driving' problem, that demands advance prediction
______capabilities - I.e. When is our country going to flood next?

______D) The British are good at this. They know how to build boats. They've been doing it forever.

One has to put all of that together, and then what they're trying to do with Isambard, comes into some sort of focus. All the best.