A few points of point of order on this thread.
Shell today announced it has paid ZERO windfall taxes in the UK in 2022. Thus its effective windfall tax rate is ZERO not 25%.
I am willing to have small bet with anyone that all the large energy suppliers (not resellers) increase dividends/engage in share buybacks in the next 2 years. That is not about increasing investment, it's about rewarding their owners. Come on Feedy, 'fess up - these guys are raking it in at the moment. I'm not hearing about a massive wave of investment.
The UK does have a staggering labour productivity problem and it's mostly related to chronic underinvestment. Jimbo won't like this (because it's a fundamental issue associated with Brexit) but UK firms are captured by a pervasive fear of the future in part related to the uncertainties around leaving the single market. I think a lot of sensible pro-Brexit advocates are beginning to realize what an unmitigated disaster for the UK Brexit was. Even Daniel Hannan (the arch Brexiteer) has started mooting the idea of rejoining the single market.
Hark ... here comes Philomena Wales now with some bollocks around "name a country that's identical to the UK apart from not being in the single market" to use for a simpleton's comparison.
Forget all this day job stuff anyway. We had better put up a decent show tomorrow - I've flown over for it.