User blog comment:AdmiralPedro1stFleet/FANS PLEASE READ. Drew Karpyshyn's ORIGINALLY INTENDED ENDING/@comment-1440333-20130525133723/@comment-1440333-20130525174344

I wish people would stop arguing that some of the endings provided are simpler, or in any way less 'magical' than the others, as it simply isn't true.

Destroy - A wave of incomprehensible energy shoots across the galaxy via the Mass Relays, causing unfathomable destruction to anything technological, destroying the Citadel, vaporising husks, and draining the Reapers of any visible energy, causing their corpses to collapse.

Control - A wave of incomprehensible energy spreads across the galaxy, carrying with it the persona of Commander Shepard, whose physical body is destroyed and their mind is preserved as an AI and disseminated into every Reaper.

Synthesis - A wave of incomprehensible energy spreads across the galaxy, transforming and linking all life, whether synthetic or organic.

All three are so far-fetched and fantastical that if you accept even one of them you have to accept the others. In fact if anything synthesis is the most readily acceptable, with less flaws in its own logic.

And before anyone uses the phrase 'Space Magic' just remember that if you showed modern technology to a human from thousands of years ago they would treat it as magic too - The Crucible is an incredibly advanced piece of tech, nothing more, nothing less.