Brazil is hilarious. He turtles like crazy (reminds me of ethiopia) and yet, for some reason, will not build many units or walls. He also refuses to explore much. I just played a game near him and found 3 ruins just 5-7 tiles from him, AGES after he should have found them. He had 3 warriors hanging around his capital but would never move more than 2 spaces away. He just kept circling the city. One game, I found him on an island, got open borders for spreading my religion and noted that the guy had only 2 huge cities (a spot for a 3rd but never built it) by the INDUSTRIAL era. He also had only 3 way outdated troops.