Yes Bitcoin’s market price can go to Zero and be worthless, but as a basic rule of thumb, no currency should be considered absolutely safe from failures or hard times.

For any currencies, there is always potential for technical failures, competing currencies, political issues and so on.

What keeps Bitcoin running?

Bitcoin’s value is created by the investors who believe in the Cryptocurrency’s value.

And it is supported by companies, people and shops which accept Bitcoin as the payment currency.

More participants to this market means more competition of mining, increase of demand and stabilization of market price.