I would say both. Gold is an excellent store of value and BTC has high ROI. I think you should invest in BTC, make a profit, and store the profit amount in Gold. Over the years BTC's performance has been exceptional, but I am not expecting a sharp rise in the BTC price in future as the price has already gone up and the majority of the retail investors lacked many funds to invest in BTC (pump from $2k to $10k is easy, but a pump from $60k to $200k is highly unlikely).