Life improvement is more free time. Free time is time free from necessary work. This includes free time from cooking, cleaning, etc, life support activities at home, too. In total, the number of working hours on average is higher than in 1990, I think, for full time workers. For some workers the work day increased to 12 hours/day, from 8 hours. It is unlikely the worker will be able to use his free time after long work day so even with non-work productivity improvements, he may not see the improvement. It might be that just 1 hour of additional free time is a better life improvement than anything. Universal cable, he list as a life improvement, is hardly worth longer work day.

I want to say that IMO: the workday should be lowered. It is possible to produce all necessary things for living in just 2-4 hours/day, including houses, cars and many more. See productivity growth. Free time can be work too, but it should not be seen as necessary work, everyone should be able to make a choice: work necessary time (2-4 hours/day) or longer. If you think something worth your free time, OK, work at your free time. But what happen is that you try to tell me that I have to work each day 8-12 hours/day so you can have an universal cable or a new video game, etc. Not cool.