If you could quantify fundamental research's value to the economy (without hindsight), it ceases to be fundamental research. Again, by definition, fundamental research does not have application. If it has no application, it has no interface to the economy. I'm not saying R&D or fundamental research has no potential economic value. It has no current avenue for realized economic value. And our system is incentivized for short-term gain. You could be a magnificent fundamental researcher, but if your work doesn't add to the economy in a relatively short timeframe, you probably won't be paid very well compared to a lesser researcher who does.
