Was I imagining things or were we just talking about supply chain problems a few months ago? Didn't we all go through that period early in the pandemic where s

Was I imagining things or were we just talking about supply chain problems a few months ago? Didn't we all go through that period early in the pandemic where spot oil prices briefly went negative? Weren't "bullwhip effect" articles regularly making the rounds on HN or did I dream that all?