Complex sentence: A theoretical "Aleph" would have the RAM capacity to literally contain all of reality, enough that a memory construct of a person would contain the complete personality of the individual and allow it to learn, grow and act independently.
Split into simpler sentences: A theoretical "Aleph" would have the RAM memory capacity to literally contain all the data of reality. Enough that a memory construct of a person to contain the complete personality of the individual, and allow it to learn, grow and act independently.