But we'll have £8.5bn MORE to do it with than we had yesterday
No we won't. With the devaluation of the currency back to 1985 levels and the worst drop in FTSE in ages we have lost more money in total than we have ever put into the EU cumulatively.
We now have far less to spend, and if we fall into recession unemployment rises, then tax revenues fall whilst welfare expenditure rises, leading to more cuts.