Before revision:  Our main finding is that increased interaction between the agents can lower the rate of learning: learning is significantly slower when both players observe each other, than when one only observes the other  .
After revision:  Our main finding is that increased interaction between the agents can lower the rate of learning: learning is significantly slower when both players observe each other, than when one only observes the other . This slowdown is driven by a process in which a consensus on the wrong action causes the agents to discount new contrary evidence .