My Lords, I certainly accept the challenge from the noble Lord: as we wish to see the encouragement of data centres and the use and development of AI in the UK, clearly we want it to be sustainable. I make the point that, in the first place, newer cryptocurrencies use less energy than the original ones, and, secondly, that data centres are increasingly looking to energy efficiency methods. AI can be used as one way in which to improve our management of energy efficiency.