Don't blink, or you'll miss the silliness.
In a segment of the mountaintop zen battle on Wednesday's show, Downey and Fallon duel empty thought for empty thought, even managing to evoke "The Brady Bunch" and Domino's Pizza.
Ridiculousness wins. Doesn't it always?
"The Tonight Show starring Jimmy Fallon" airs weeknights at 11:35 p.m. ET on NBC.