FUD stands for fear, uncertainty, and doubt. FUD is the strategy of influencing perception by spreading false and dubious information. In an environment of FUD, productivity takes a hit.

https://abhyrama.com/2020/05/10/fighting-fud/

There is always room for improvement.

Whenever you start believing you have the best system, think of all the people who know more Kung fu than you. There is no way they have a system identical to yours.

Always be on the lookout for better.