Board Thread:General Discussion/@comment-86.46.22.35-20130403153709/@comment-6747658-20150902173001

Pretty sure Kojima ignored the "Ishmael = Solidus" idea because no where in the series had it been shown that accelerated aging could make a 3 year old watching over Big Boss for 9 years and look like a man well in his late 30's/early 40's at 12 years of age.

And no, that video in Revengeance is really nothing to go by as it wasn't Kojima who governed over the casting choices there, the most likely argument being that they based their actor for a younger Solidus purely at his age appearal in MGS2, which would match then, timeline wise it wouldn't make that much sense for him to look that old already when he was only 19 (Liberian war started in 1989). while appearing as a man in his late 30's/early 40s, according to the video at least.

Accelerated aging has not once shown to work that way, while yes Solidus's genes did purposely cause him to age faster, it was also done in a controlled manner as opposed to Solid, Solidus was not having the excessive degeneration that Solid suffered from.