But a specific idea can be worth $0 at some point?

Another way of seeing it is there have been multiple bubbles (overpriced) then Severe discount cycles. A bubble does not imply "without value", it implies overvalued. Think that has clearly been the case several times.

I want it to go up as much as the next guy but let's put the crystal ball away before determining 2018. We still have 3 quarters left.

After the next financial crisis,eta late of this year or early next year, the bitcoin will rise from ashes like the Phoenix and will go through the roof.

I dont think its over. We will know by mid June - end of July. I'd be willing to bet BTC sees under $6K again & low 5K (< $5,500) between now and August 1st.

I think we still have a little more to go, but I am glad we are seeing lots of green today.

Define a bubble for me, and then try your hardest to say bitcoin wasn't a bubble again... Smh an asset bubble isn't the death of an asset, a bubble is just an exponential rise followed by an exponential correction, Bitcoin was 100% in a bubble