This year has meant a big change to behaviour all over the world, which in turn has caused a mad scramble as companies try to re-train ML models to adapt to the new normal. It highlights a challenge with ML - if there's a shift in the data then models trained on old data stop working so well. Covid is the disruption of today, but I thought it's worth noting that my beloved country has had many disruptions, some of which will reflect in the data of this competition.

I won't list all the events, but over the period covered by this challenge we've had a regime change ("Definitely not a coup"TM), protests, fuel shortages, inflation, floods, drought... Definitely a challenge to forecast! Good luck all :)