I think you mean 'extensive' as in far reaching rather than 'expensive' as in costly, although it certainly will be an expensive mistake for his career.
A megaflop is a 1,000,000 Floating Point Operations Per Second - not a 1000 http://whatis.techtarget.com/definition/0,,sid9_gci212543,00.html so it's 360 TRILLION! - now, that's a lot!
http://whatis.techtarget.com/definition/0,,sid9_gci212543,00.html
so it's 360 TRILLION! - now, that's a lot!