It's both. In episode 1 someone asks the cowboy actor to "do the thumbs up". Later, the actor explains the mushroom safety part to his daughter. In episode 3 there is another flashback where the cowboy actor does a photoshoot for Vault-Tec. He asks the photographer "what if I try a thumbs up?"
Oh yeah, I didn't realize that 100% of Fallout related posts are referencing the show and not the games for the foreseeable future. My bad.
The creators of the games also have also said it's just a thumbs up and not the mushroom cloud thing.
It's both. In episode 1 someone asks the cowboy actor to "do the thumbs up". Later, the actor explains the mushroom safety part to his daughter. In episode 3 there is another flashback where the cowboy actor does a photoshoot for Vault-Tec. He asks the photographer "what if I try a thumbs up?"
Oh yeah, I didn't realize that 100% of Fallout related posts are referencing the show and not the games for the foreseeable future. My bad.
The creators of the games also have also said it's just a thumbs up and not the mushroom cloud thing.