It's all about what risks you want to take. If you want low risks and low ROI, then gold, high risk and high ROI, crypto.
I'm thinking way past that. What I'm wondering is if in the not to distant future (say the next 10-20 years) gold will no longer be used as a store of wealth period, in which case it wouldn't be an investment at all. I mean a scenario in which governments no longer used it to back currencies, it was no longer hoarded, and the only people interested in it were solely interested in its usefulness for electronics and jewelry.