"There is much pleasure to be gained from useless knowledge." --Bertrand Russel (attributed)
Well looking at those really quickly sounds like the big question is What if Nintendo actually kept with sony on partnership. What would have happened?
The short answer would be microsoft probably would have never even made console knowing they would never have even stood a chance. And probably sega would have saw the numbers pulling in from this alliance and not even bother releasing the dream cast making Nintendo/sony the ultimate ruler of the console market with no one to challenge them.
Monopolies are never good for industries, just look at Pro Wrestling in America.
Sega would have been better off if Sony hadnt made the Playstation, it caused them to rush a lot of things and then Bernie Stolar came from being in charge of the American Playstation to being in charge of Sega America and he made it not have 2D games or RPGs, then ultimately killed the Saturn. Sega would have been a strong number 2 to Nintendo after the the N64 would have been a 3D cd based console since the Saturn wasnt originally going to be a 3D machine. In fact the N64 may not have been a 64 bit system, and the Dreamcast may not have been a 128 bit system. Microsoft would have entered the console market because then it would have been only Nintendo and Sega against each other. Sony would have only have made the cd attachment and hardware for Nintendo, it wouldnt have been an equal joint venture. It all rested on Sony not wanting to be a major player in the video game world, they did, so we got the Playtstation and here we are now.
What if Infocom hadn't been bought by Activision and left for dead shortly thereafter? Would the text adventure genre have survived and advanced in the mainstream as opposed to being revived by hobbyists years later?
What if Looking Glass hadn't gone under? Would they be making new awesome or would people just be lamenting that System Shock 5 just ain't the same?
What if John Romero and Tom Hall hadn't been ousted from Id Software?
What if Chris Crawford had stayed in the gaming industry and tried implementing his interactive storytelling ideas gradually from within instead of seperating from it completely?
And this is a minor one, but what if the source code for Daggerfall hadn't been lost and was instead released as open source when Bethesda put the game out for free a few years ago? Would there be shiny modern ports of it with modern features, perhaps even a modding community like there are for the later Elder Scrolls games?