Because that's all this show is, lots and lots of talking. I realize the basis of this show is a video game, and I'm not a gamer, but is the point of the video game to bore the player to death with endless dialogue? I can understand the necessity of character development, and using dialogue for world building, but I want to see more mutated humans, not closeups of Bella Ramsey's face for hours on end. The Walking Dead did post-apocalyptic really well, at least initially, but this show is all about the establishment of various settlements, their sets of rules, references to pseudo-governmental entities, rebellions, endless sneaking through apartment buildings and underground tunnels, the forming of alliances, and of course that hoary staple of post-apocalyptic stories, the one person who is immune to the virus. So let's set out for a trip across America for no particular reason and a vague set of directions, and lots and lots and lots of dialogue with some pointless flashbacks crammed in. You'll probably wear out your fast forward button like I did.