The same can be said of any investment opportunity. It comes down to the amount you have available to invest, and how much effort you want to put into it.

For those who want a low effort fairly safe hedge against inflation and currency changes an index tracker fund is probably the way to go.

A small percentage on risky investments is probably fine, but then you do have to choose the correct risky ones =)

I wish I had bought Tesla shares in 2011 too.