Trying to predict supply (let alone demand) of X commodity is futile. Be it Soy or Silver
Look at dreamy American farmers still planting Soy today hoping trade deal with China will be over and China will buy US soy next year,.
In 2017 who in USA would have predicted Soy bean would be 40% cheaper than all time high of 2017
Few US farmers are considering China already signed long term supply for Soy from South America and China needs less than 60% of Soy than it did last year due to swine flu.
Plus Trump exempting many US Oil refineries from adding 10% ethanol have further reduced the demand further for soy and corn.
For silver even without a recession over the last X years had current generation of panels used the same amount silver as first generation Solar panels, silver would be much more expensive now.
2007 to 2016 silver mg per panel dropped from 400mg to 100mg on average. It is reported that it will half again to 50mg by 2026 at $US15 level.
Early first generation zero silver panels are now being produced that are cost comparative.
Nevertheless the number of cells produced was more than efficiency gain of less silver per cell supporting demand.
But one day zero silver cell will be cheaper... what than for silver?
Predicting demand or supply is just a guess