Anyhow, if silver is valuable
I think he meant silicon. Solar panels are made from silicon.
Either way.
I cannot see much if any value to attempt to back physical items of the real world on blockchains.
Of course, some day there may be some use for these glorified databases, but they are just attempting to suggest that they serve some kind of bitcoin complementary purpose..
And, the reality of the matter is that we need NOT wait no longer for bitcoin 2.0 and the "killer app" because bitcoin is the killer app that we have been waiting for.