Yes, it's a waste of time iff it does not improve your product / get you closer to achieve the goals your organization has (profitability, whatever). If unders

Yes, it's a waste of time iff it does not improve your product / get you closer to achieve the goals your organization has (profitability, whatever). If understanding every detail of your stack makes your product better, go for it! If it doesn't then learning every detail of it is not business, it's an academic exercise. At least that's my take ;) have a nice day.