Well, I have to say that I'm very impressed: MPE has always been one of my favorite wonders, and an essential early wonder. I've also been aware of the "slaving" trick - "gifting" a tech that the AI is working on to get it to switch to something you don't already have - but I had used it only in very small doses. This weekend, I was playing a D+2 game, where I tried to use it at every opportunity, at least during the b.c. era (i.e., before I got lazy and couldn't be bothered): WOW! We RIPPED through the techs. I set my own research rate at 10%, 'cause I just didn't need to "discover" techs, myself. As long as I was the middleman, everyone was happy to trade with me. Not only that, but all of my "gifts" made me a favorite with everyone (except the Carts - but they apparently had a bad set up, were getting beat up by everybody, [punch] and had set their own research rate to "0"). It helps me appreciate how some of those early landing dates are achieved.