I am traveling for the first time since COVID-19 started, almost after 2 years. It is jarring how much COVID-19 become part of our life. Billboards everywhere about COVID testing. Signs everywhere about wearing mask, social distancing and washing hands. Questioners on every step: do you have COVID symptoms? are you willing to wear a mask? Tags reassuring the area was sanitized, air was filtrated and so on. The world is completely different.