So, in an ideal world, people will only buy real estate and other strong long-term investments, and rather than eating, live off love?
Come on, I didn't say all spending. It's useful to not think black and white, either-or.
Consumption is a vital economic activity. Not just eating, but cars, household goods, anything that either loses value over time, or is consumed by use. People need these things, and you can't just eliminate it, or even really discourage it very much without hurting the economy. Now, certainly we shouldn't encourage
oerconsumption, which is what inflation does, by making less durable goods better investments than just holding on to your money. Demurrage would do the same thing, but to a lesser degree because of it's relative stability and predictability. Certainly it would discourage saving, since that's it's intended purpose.
How do you suggest we build an economy with neither savings nor debt?
I haven't gone that far in my plans, but if you ask then I would say that in principle by just doing. Savings or debt do not build anything. Productive activity does.
Sure, but how do you propose I buy a car with productive activity?