Time for a long term investment in silver?

So tell me:
Is it more likely that silver falls to zero (worthless) or goes to 40 ?
All this may take some good time and your rollover / overnight fees in cfd have to be considered.
But overall - for me - it seems that chances for 40 are greater...

keep in mind:
- trade at your own risk
. you are unique and awesome
- love what you are doing
- love life