It's hard for me to buy that the J-20 can be ready so soon neither. Honestly, if it's too fast, I'm actually a bit more worried, like the high speed rail incident. We can honestly only hope the J-20 and the program itself is really that ingenious. I really want to see China take the lead for once, even though not necessarily beat the Raptor in all aspect(highly unlikely). The reason is as we can take it that J-20 will currently be the best that China fields, it will be another longg time before we something topping the J-20, so I really do want to see something, which is coming out in 201X, to be worth a good long time.