I believe that I am Carlos, but I lack any of my scientific instrumentation to quantify an answer with rigorous scientific methods. It is entirely possible that I am a doppelgänger, considering the fact that I do not remember how I came to be in this place, and I do not know how likely or unlikely that is.

[... yes, he's Carlos.]

But I would like to believe that I am. And I would like to believe that you are you. And I would like to believe we will find each other shortly.