Nobody knows anything such thing. I think it's impossible to make any definitive declarations about what this team can and can not do. Wasn't the 9 game road trip through the NL East suppose to bury them? They finished 4-5.
The Nats have been in pretty much every game this entire year. There just as likely to have a win streak as a losing streak.
It's one thing to disagree with my prediction. It's entirely another to imply that the prediction has no basis in reality. This team is entirely capable of going on a long losing streak.