Oh of course the investor buys $75 of debt for $73, I get it now. I somehow had it in my head the other way around that he can borrow $75 for $73 which wouldn'

Oh of course the investor buys $75 of debt for $73, I get it now. I somehow had it in my head the other way around that he can borrow $75 for $73 which wouldn't make sense. Thank you.