Here’s two ways to look at it regarding convenient smart products:
1. How long does it conceptually take to do the task? Take a phone for example: take out your phone > unlock it > open the app > find the desired information… maybe it takes 5 seconds.
2. How long does it actually take to do the task? Take the phone out > unlock it etc., then take into account the high risk of getting distracted by social media or another app. As a result, that imagined 5 second block of time easily becomes 5 minutes or more, which isn’t great for productivity and takes time away from what you actually care about doing.