> I don't know where you are pulling those numbers from, but you are assuming that 6% magically comes out from the 'unproductive' time without factoring in the take home homework and other things that blow up the 2.5-hour mark.
I am pulling that number for 7 years of management experience and talking with other people with similar experience.
And I don't know for sure it will come from unproductive time but I feel comfortable saying that if the teacher is any good they will be very engaged during that 2.5 hours because it is so different than what they do day to day.
But my hunch is it will come from the unproductive time. Studies have shows that shrinking the work week does not mean employees do less work. They do the same amount of work more efficiently.[1]
People will stretch to fill the allotted time. And if they know that they don't have as much time they will work to compensate.
> The 2.5 hours will also scale up with the number of participants, 20 employees who are committing 2.5 each week (at very, very minimum) is a loss of 50 hours per week.
The company is getting concrete value from that. Having cross discipline knowledge allows teams to communicate more effectively, communicate with customers better, and appreciate other job functions more. Never-mind as another person wrote they might be able to automate the tedious parts of their job using scripts they learned how to write. But assuming for a second you are right and the ROI is negative. The ROI of having them browsing Facebook during that time is even more negative.
> I can go even further and add people who did not attend the workshop but felt like they are now entitled to a 2.5-hour break of some sort (and rightfully so).
Absolutely not true at all. These people are not on a break. They are learning. It is work. A different kind of work than they do day in and day out sure but still work. Not only that but they are getting a free (to them) education. Which has a predictable value on the market (look at the cost of a code bootcamp or college credit)
I'm not following the logic: someone is getting training so I deserve to work less? If I was in that scenario I wouldn't demand a 2.5 break. I'd demand 2.5 of training because I know how valuable that is.
I have a word for people who slack off for two hours while their peers are hard at work learning a valuable new skill: fired.
I have never heard of anyone putting so little value on training. You talk like they are playing foosball for 2.5 hours.
[1] https://www.nytimes.com/2016/05/21/business/international/in...