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Both investments are good in my opinion because one is tangible and reliable and the other is revolutionary. I think it is best to invest in both to have a diverse nest egg...

Yes, and I DO!!!
Silver is the best TRADITIONAL Investment by far!
I am heavy into Crypto now, but I already had lots
of Silver, and it is also my Exit Strategy from Crypto ;)
(not an total exit, however!)

SILVER is EMP-Proof, whereas the blockchain is not :(

right on!!