1. Psychological: a fresh beginning 2. Scientific: humans record one more orbit around the sun 3. Ritualistic: an opportunity to reflect on how 365 days have gone and what you want to be different for the next 365 4. Traditional: a time for fireworks and celebration 5. Ancient: a dedication to Janus, god of gateways 6. Christian: Jesus’ circumcision (https://en.m.wikipedia.org/wiki/Circumcision_of_Jesus) 7. Nihilistic: another day, like any other 8. Meta: a time to reflect ...