I can simply say gold plus bitcoin. We don't need to differentiate them from each other. Both can be stored in a secure way so that your investment could return to you with a good profit. In addition, you decrease the risk of inflation with this technique. Try to learn both gold and bitcoin in the same time.
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
Bitcoin is too high right now, it seems less satisfactory to invest today unless it is used for trading. Gold still I made main choice to invest, despite decline in prices, I believe next year have added value for my investment.