The time that elapsed from when I decided to join the Nexus and when I chose a name was very little. I just thought, "I need a name!" I put in the first thing that popped into my head.
Later, the more I analyzed my choice, the more I realized why it was a good one. Mr. Peabody was a cartoon, and one of the side shows on the "Rocky and Bullwinkle Show". Mr. Peabody was a dog that took his boy, Sherman, to various times and places in history. He was a time traveler, a guide, and taught Sherman many things. He took Sherman on extravagant journeys through time and space.
So, I realized, after the fact, I am not Mr. Peabody. I am actually Sherman, and mescaline, DMT, and pilocybin are Mr. Peabody.