For the first time in history, the UK has borrowed money - this week - at a negative interest rate. Of -0.0051%.
Meaning that the repayment amount will be less than that borrowed. And there's more free money readily available.
Because of our current good credit rating - and because investors are seeking safe havens for their money, rather than a return.
Just as well as the Chancellor thinks we may soon need to borrow close to £300 billion - to pay for coronavirus costs.
Consequently, covering interest on our increased National Debt - as a result of this borrowing - will be problematical.
Even now, we're paying over a billion pounds a WEEK, in interest - on our existing Debt - which is around £2 trillion.