User blog comment:Masseffect7/Mass Effect 4 - No Connection to Shepard/@comment-1786741-20131020213539/@comment-109.175.216.86-20131020223049

But synthesis isn't just green lights and veins... I've seen that a lot here on the wiki. We're given to understand that synthesis is a new way of understanding, another level of consciousness which allows both organics and synthetics to shed their old ways of thinking and ascend to another plane of thought and of true cooperation. It's basically a forced 'upgrade' of the galaxy. So it would require a different script as well, to make it believable. If the only difference was green lights I, as a player, would feel as if the impact of Shepard's choices, however narrowed down by the endings they were, would be made even more inconsequential.