At any rate, I think ADAM would've emerged, but Plasmids would've been a lot slower to develop and opposition to Ryan wouldn't have been so well organized as it was under Fontain.
Prehaps, 1960 will still see Rapture in a good state.
Here's the offer, try to make a relatively sensible time line of a odd idea.
You must have the Western Roman Empire and Eastern Roman Empire both live into modern day. Also, they must not join back together to form together to form the whole Roman Empire until 1990.
Western Empire Specifics...
1945: The Sherman Comet.
It was a good tank that improved on the Sherman design, and if I'm correct was either the first or one of the first to use a SABOLT shell.
Metal Gear Solid 4: The Forth in the series of what is considered masterful blend of Industrial Sim and RPG as you return as the new CEO of "Outer Haven" in attempts to save it from ruin!
I'm curious, what if rather then being centered on hate, Germany grew from 1933 under Hitler to a accepting nation of all peoples, doing something like giveing full rights to everyone, regardless of race or religion, how does this effect the world of that timeframe?