I never argued there were funding constraints on making loans (there are capital constraints, but they're fuzzier). But the deposit is the bank's liability, not its asset (unlike, say, an organization having the ability to mint coins or cryptotokens for its own use from thin air; much more like Amazon's ability to create as many $10 vouchers as it wants, provided it's got a way of paying its vendors when people try to spend the vouchers). The only reason anybody else treats the increased number in the customer's bank account as "money" equivalent to cash is that the bank can borrow currency if and when it needs it (and remain solvent because eventually the customer will pay the bank back)