It's a great way to prevent money from being wasted on projects that have a low return on investment(IRR-internal rate of return). In other words only the proj

It's a great way to prevent money from being wasted on projects that have a low return on investment(IRR-internal rate of return). In other words only the projects that generate a sufficiently large return are feasible investments. Buffet does not like to waste resources,time and money :)