Are We Making Any Progress in Replication?

Econometrics is so complicated. It's not like a example i use as n where's john glen going to come down in this spacecraft if we change angle, and he's either there or he isn't. Maybe i'm wrong, but the idea that in let's take your of the work we've been talking about from the facebook data, you moved this person from a less connected community to a more connected community. On average, there going to gain 20 % you can't verify it. Do you feel like we're getting closer to the truthd and how comfident should we be it this are all I think it's a healthy skepticism.