Hahahaha, how great is that?
Will there be a minimum validity of the certificates?
https://ec.europa.eu/commission/presscorner/detail/en/QANDA_21_2781
In Germany the certificates are valid for one year ("muh, due to technial reasons") there are rumors that it's only 7 months ie. in Spain, so fully "vaxxed" people are starting to loose their freedoms again.
(German discussion about father in Spain, unverified) https://twitter.com/DoCruz1/status/1425179574460157957
In Weimar germany, you could take 100 marks to the shop and by the time you get there it was only worth 1 mark.
In Biden America, you can take a vaccine booster in the morning but by the time you get home it would be out of validity.