Evidence from March 2021 shows that within roughly 30 days of the Feb 20, 2021 recording date, multiple U.S. states had broadly opened COVID-19 vaccination in ways that would have allowed a motivated middle‑aged person (like any of the four hosts) to travel and get vaccinated.

1. States officially opening to all adults within 30 days

   • Alaska: On March 9, 2021, Gov. Mike Dunleavy announced that, effective immediately, the COVID‑19 vaccine was available to all individuals who live or work in Alaska aged 16 and older, making Alaska the first state to drop nearly all eligibility requirements. (gov.alaska.gov)
   • Mississippi: On March 15–16, 2021, Mississippi opened eligibility to all Mississippians aged 16 or older, effective March 16, becoming the first contiguous U.S. state to do so. (mississippitoday.org) State health bulletins at that time specify that vaccinations were available to Mississippi residents and out‑of‑state people who work in Mississippi. (content.govdelivery.com)
   • West Virginia: On March 22, 2021, Gov. Jim Justice removed remaining eligibility tiers and made all West Virginians aged 16+ eligible for vaccination. (wsaz.com)
   • A compiled national timeline confirms that by March 22, 2021, Alaska (Mar 9), Mississippi (Mar 16), and West Virginia (Mar 22) had all opened eligibility to the general 16+ population. (hbcunews.com)

2. Practical openness and vaccine tourism

   • Long before late March, vaccine tourism across state lines was already happening. Reports from early February 2021 describe Virginians and others traveling to neighboring states and Florida to get shots when appointments or eligibility at home were tighter. (whro.org)
   • Specifically for Mississippi, a February 9, 2021 report noted that more than 6,700 people from other states had already been vaccinated there, and state officials said they had no plans to require proof of residency, even while encouraging non‑residents to stay home. (wwno.org) Later technical language about “residents or out‑of‑state residents who work in Mississippi” did not fully eliminate the reality that thousands of non‑residents were able to be vaccinated in practice. (content.govdelivery.com)
   • National overviews of U.S. vaccination note that by March 2021 several states (including Alaska and Mississippi) had made vaccines available to all adults 16+ and that some tourists and undocumented immigrants were being vaccinated in the U.S., underscoring that access wasn’t strictly limited to in‑state residents. (en.wikipedia.org)

3. Matching Friedberg’s claim

   • Friedberg’s prediction was not that every American adult would be eligible by mid‑March, but that by roughly 30 days out there would be “enough places now that have open VAX or will in the next 30 days you can go get vaccinated” — i.e., that some U.S. states would be broadly open enough that any of the hosts could choose to travel and obtain a shot.
   • Within that 30‑day window (by about March 22, 2021), at least three states (Alaska, Mississippi, West Virginia) had fully opened eligibility to adults 16+, and documented vaccine tourism plus loose or inconsistently enforced residency checks meant non‑residents with the means and motivation were indeed traveling to such states for vaccination. (gov.alaska.gov)

Given that multiple U.S. states had broadly open vaccination to adults by that time, and that cross‑state “vaccine tourism” was already occurring, Friedberg’s core claim — that within about a month there would be enough places with open vaccination that the hosts could travel to get vaccinated — did come true.