2/3 of NHS staff aren't clinical, which seems mind-boggling in a health service.
It is about the fifth largest employer in the world.
Our population rises by approximately 300 000 people every year and has been for the last 20 years.
These all impact on the cost. But it does seem, however much we pour in, it's never enough. I find the think tank report very believable, tbh. (I'm a health economist, but not really of the NHS)
Personally, I'd back a Royal Commission to look into the future of the NHS - what's going on is unsustainable atm. And we're already going to be monumentally fucked in the coming recession, given that there's no way to cut interest rates as they've never raised them, coupled with unrestrained QE - I think a 4-5% increase on the income tax every year for years will just be completely unsustainable in the coming financial climate. And people bleat on about the "Scandinavian model" without understanding that they have smaller populations, much lower population density and, in Norway's case, a sovereign wealth fund that EU rules prevented the UK from establishing.
At the end of the day, if it was that easy to fix the NHS, successive governments would have done it already, instead of the tinkering and messing we've had since the 60s. But no government is prepared to be the one who is going to have to take what are going to be - frankly - unpalatable decisions to make it fit for 21st century Britain: so I suspect it will continue to be an underperforming money pit for generations to come.