Sure... that's why I said start with 1 tonne of grain for 2 tonnes of gold, this exchange rate like other exchange rates is a measure of risks, so if the europeans behave and play nice, we'll award them with a good rate, otherwise we'll start counting grain kilos against gold tonnage.
How about one tonne of grain for one tonne of EUV machine with full tech support. China already has so much gold, and they don’t really generate much value.