There’s no horse anywhere smarter or cooler than No-Name Stupid! In Part One of The Chronicles* (The Life and Times of Halycon Sage), we read:
“Halycon Sage’s loyal mount was a horse with no name, because he loved the song of the same title. The only problem was that there was no way to effectively call this horse. So, by a natural process of linguistic development, the horse came to be known as No-Name Stupid, to which he responded readily.”
But do you know the song? If you do or if you don’t, time-travel with us now to the 1970s, just you and the Nevada desert, the golden sun above you and your brown horse moving gently, everything peaceful as the wide blue sky.