This query could refer to several different series or concepts titled "Paradox." Below are the most likely matches for Season 1, Episode 10 (S1E10) involving a paradox.
The episode concludes with the revelation that the loop is seemingly unbreakable, as characters receive letters and objects from their future selves that have no clear origin point (a classic causal loop). 3. Revisionist History (Podcast) [S1E10] Paradox
Paradox was a 1950s scientist accidentally sucked into a rift in time and space, where he spent eons learning everything about the universe before gaining the ability to travel through time at will. This query could refer to several different series
