User blog comment:Ygrain/EDI and the geth: their purpose in the story?/@comment-5337704-20120727095430/@comment-4721065-20120728085710

@Legionwrex: Have you considered the full ramifications of Synthesis, though? We are told that everyone is half-organic, half-synthetic now, but what exactly does that mean aside from the glowing green eyes and Reapers not having a reason to harvest anymore? Do geth and EDI now have to eat organic food? If yes, is it dextro-amino or the regular one? Alternatively, do the organics now have to sustain themselves through electricity alone? Has the Synthesis kept the organics reactions to amino acids the same, reversed them, got rid of them or did something in between? If the organics are now partly synthetic, will they be affected by the computer viruses? Will the organics still be able to naturally regrow all parts of their body by themselves, or do they have to be repaired like machines?

Most importantly, what happened to ageing and lifespan? Has the synthesis process taken the lifespans of all things in the galaxy (which, remember, ranged from the 20-year vorcha lifespans to millenia-long krogan and asari one, while geth are probably indefinite) and averaged them out? Will the geth and EDI now have to grow old and die, as well as suffer from the mental disorders (actually, it would make for a fine black humor if all happiness of the synthesis is due to EDI's intelligence deteriorating) Will half the asari die off, since the galaxy average is probably a lot less then hundreds of years? I know that EDI says something at the end about how "the mortality itself might be transcended to a state that I cannot imagine" but I think the key words here are "might" and "cannot imagine".

As such, I would rather play it safe and choose Control, specifically since you will become the living proof that consciousness can be replicated inside a computer and thus can help the organics do what the quarians wanted - to live indefinitely in digital form.