That means your subject and the above mentioned questions are not tally together. That is, they are not rhyme. If bitcoin has not been existed is different from what if bitcoin fall? Now if bitcoin has not been existed or noticed by anyone, then Good would have provided another alternative for the world. That is, that another thing would have been introduced by God. According to the "Holy Bible", nothing is new and nobody can do new things, that means, everythin has been programmed by God to exist. So we would have done another thing all together. And based on your real question you asked "what if bitcoin fall"? Bitcoin is a decentralized digital currency which is not controlled by anyone but the wealthy still have a say in the market. Based on that, they can buy a large quantities, and store it to make bitcoin scarce in the market and at that time bitcoin price would go up, and when they released a large portion of the bitcoins stored in their custody, the market would come down as bear market. So these are some of the differents of your question.