That is a big bet!
Is it an assumption we can make, does it not assume we have to continue to be able to retain control, pull the right levers, retain the same continum???
Climate change alone is enough warning that things will not stay the same.
The fact we already have the reality of "the working poor" is likely to become a dominant factor, that if not addressed will test social cohesion to the limit.
Yes, of course national debt is not the same as household debt, except it shapes how people can / cannot address their personal debt issues affected by inflation and by implication affects the quality of life...hence we are back to Micawabers reality.
The warning signs that the 'death of debt' is beginning to appear over the horizon, can only be ignored for a while.
My point is that inflation is part of the economic system, just like taxation. In itself it isn't a problem, and would be much less of a problem in a growing economy where the private sector wage growth matches inflation and people are not gradually worse off.
What you are speaking of is political, and vitally important (and has been since the birth of modern democracy in the UK).
That is very different from my point about how the economy functions, which most politicians seem to have no grasp of. That's a concern, because it means their political solutions to the problems we face are usually based on a flawed understanding of money, inflation and so on.
Here's another point. The national debt does not necessarily shape how people can address their personal debt. It also does not necessarily have a connection to inflation.
After the financial crisis this country has added £2 trillion to its national debt. This was done to stabilise the economy. It also coincided with historically low interest rates and low (compared to today) inflation rates:
https://www.rateinflation.com/inflation-rate/uk-historical-inflation-rate/
It was the Ukraine war that had a big impact in 2022, not government debt by itself.
We could make an argument here that quality of life was impacted by government inaction, and a failure to keep interest rates low or spend in the short term to help cost of living issues.
But politicians still treat national debt as if it were personal debt, and the economy as a household.
Climate change is actually quite a good example here. In a sense, it isn't a problem. I mean that because we know what we have to do (decarbonise the economy), and we have large numbers of reports that explain precisely how we need to act and how much we need to spend. We also know that not doing anything (or failing to act in time) will cost much much more than if we act.
Yet Net Zero is treated as an economic millstone, and there are complaints that we cannot afford it. But we can. The state cannot go bankrupt, and this is a good example of how a country could borrow (create debt) to invest to benefit the economy in the longer term. But to do so we need to rid ourselves of the mindset that debt is bad. Just like inflation, it can be in certain circumstances, but it does not have to be.
The state can also change laws which incentivise capital to invest in certain things (like net zero) which will help fund beneficial outcomes.
Here is Richard Murphy (who is a centre-left economist) talking for 13 minutes about money. He is talking from economic orthodoxy. His argument is that there is huge amounts of money in the world, usually held by wealthy people or funds. He explains how governments can encourage that money to be invested for social benefits, creating growth:
My point here is to show how even left-leaning economists can offer creative solutions to encourage growth that don't simply fall back on simple tropes of 'tax the rich' or 'redistribute wealth'.
His other important point is that we currently do not have the political imagination for this. Instead, in constraining ourselves with fiscal rules and the idea that we need to raise taxes to fund spending, all we have done is increase the tax rates on individuals and small businesses to levels we haven't seen since World War Two. Income is heavily taxed. Wealth is not.