I thought I have figured out a way to make money

Last year we renewed our mortgage. We took the option of “open variable”, which means you can lock it in anytime the mortgage is going up. It started with 3.75% and it is now at 2%. We have a friend whose open variable mortgage is only at 1.6%. He has a savings account that pays him 2.5% a year. Just imagine you can make money by borrowing the money from the bank and then put it back into the savings account in the same bank. Unfortunately, to make about $50,000 a year you will need a mortgage of 5.5 million dollars. Banks are just not willing to lend this kind of money to guys like you and me, any more. Oh, well.