Email in the 1980s?
Not sure if these continuity "glitches" in the show are intentional or just accidental but I'm seeing more and more of them like David's sister asking if she can send her husband an email or maybe go use a PAYPHONE? What decade do these people live in where they still have payphones but also have email?
And when Ptonomy says he remembers playing on the kitchen floor as a child of 7 while "99 Luft Ballons" was playing on the radio. That song came out in 1985 and I'm not good guessing ages but I'd guess he is in his mid-twenties "now" (at least the time the show is taking place) maybe so that would add maybe 15 years to the timeline putting the "present" around 2000 or so?
That seems abit late given the scenario as a whole. Also if David was born in the mid-1960s he'd be in his mid-30s by 2000. Maybe that fits. Again, I'm not great at guessing ages of actors.