Bitcoin is not yet in the bubble! Though we have seeing significant growth based on your analysis. We expect in years to come to see bitcoin above $500,000. Some one has said on this forum that " when bitcoin is in the bubble we may see one satoshi to be equal one dollar" Remember op bitcoin has not gone mainstream yet, if we go mainstream we may see bitcoin been accepted in all the social media and online or offline stores.
That's a possibility. There are conflicting news about the bitcoin bubble but I do believe its not. If its a bubble, then it drop already but its not. It continues to grow which in my opinion it has a demand. These demand creates the price appreciation of this bitcoin as more people consider bitcoin as an asset rather than as a currency.
Yes bitcoin story is not bubble. If it would be a bubble then it might be around $1000 at max. It got rose then fell back again. You what we all are seeing is the up rise is more significant than little downs price chart is telling us. You can see a regular up with little downfalls but you cant say this is bubble.