Can I choose both? The two were not the same and have some advantage and disadvantage. Gold has been there for a long time now and we know how stable it is. Bitcoin price is not stable and we do not know how long will it last on the market. Gold cannot be attain if you have no money to buy for it. Whereas, bitcoin can be earned.
You do have a point about the difference of the two. But it seems that bitcoin is for us. We are here to earn since we do not have any money to buy for gold. Gold is dangerous to have since people knew its value. Bitcoin like what you have said can be eatned that is why bitcoin is for us.
who is this "we"?
everybody has some money to invest unless you are a bum living on the streets. so stop thinking about earning through your signature campaign and start thinking about some investments.
then you can see that Gold alongside Bitcoin can be a good combination for a good investment to diversify and reduce the risks.
Bitcoin is much affordable than Gold, but this two (2) having a great return of investment depending of how much your investment, earning in signature campaign can helps you to increase your investment in bitcoin and it is also possible that you can invest in gold by collecting more bitcoin.