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You can do actually things with gold. More than you'd expect (for instance http://geology.com/minerals/gold/uses-of-gold.shtml )

BTC is quite different as it is only a "value store" and is inflationary (the supply of BTC is fixed and won't increase)

I think you mean non-inflationary?

Well, except the supply of bitcoin goes is massively inflationary (miner's fees), and it is unclear the network can function without miner's fees.

My personal suspision is at some point the miners will convince everyone to make a fork which keeps miner's fees forever.