Original sentence: However, it is worth noting that the US company with the highest market capitalization in 2008 was Exxon Mobil, peaking near $0.5 trillion in the 2nd quarter and the most powerful supercomputer under development by IBM, Blue Gene/Q, is expected to be capable of 20 petaflops by the year 2011, so describing these two predictions as being "not even close" is debateable
Edited sentence: However, it is worth noting that the US company with the highest market capitalization in 2008 was Exxon Mobil, peaking near $0.5 trillion in the 2nd quarter and the most powerful supercomputer under development by IBM, Blue Gene/Q, is expected to be capable of 20 petaflops by the year 2011, so describing these two predictions as being "not even close" is debatable