Apart from the wonderful scottish accent there was one train of thought that particularly caught my interest in SE-Radio Episode 156: Kanban with David Anderson:
Estimation is a choice! Estimates lead to commitments that drive a dysfunction that is undesirable:
Estimates lead to setting an artificial target and forcing people to meet that. That tends to drive heroic behavior. [...] When people act heroically they stop improving [...] and they stop learning.
- David Anderson, SE Radio #156
