Writing Architecture Decision Records (ADRs) became popular, which is good because the other popular approach was to ignore documentation and rely on "tribe wisdom." The tribe wisdom didn't work. Usually, the whole idea falls apart when a new team member hears, "X knew everything about it. They don't work here
How many times were you planning to study but you postponed it because "you weren't feeling like it." You lacked motivation until external motivation struck you. Usually, the external motivation was provided by the approaching deadline. Fear of deadline can be very motivating, but is it the right motivation source?