Broken Meeple Videos - Civilization: A New Dawn Review

Sid Meier's Civilization: A New Dawn is a strategy board game in which two to four players act as the rulers of history's most memorable empires. Over the course of the game, players will expand their domains, gain new technologies, and build many of humanity's greatest wonders. In the end, one nation will rise above all others to leave its indelible mark upon history.

The other FFG version is an amazing game but it's also a 3-4 hour monster to learn, teach and play. This one claims that with a little abstraction it can fit the time in less than 2 hours. What has it sacrificed to achieve this?