Profit-booking near the resistance line pulled the price back toward the critical level at $49.54 on Nov. 9. The strong rebound off this level on Nov. 10 suggests that bulls are defending this level with vigor.
Ultimately, the future of cryptocurrencies — their value, security, and staying power — is still up in the air. But the experts we spoke to believe owning some crypto could create value over time. Whatever your interest or motivation, experts stress the importance of making sure you understand the unique volatility and risk factors of cryptocurrency before investing.

Posts per day and new authors can be retrieved from each subreddit programmatically; each post is timestamped, so historical time series can be generated by iterating through the posts. Posts per day are used here rather than comments per day. Each post on Reddit can have a number of associated comments in a one-to-many type relationship. However, examples exist where huge numbers of comments are generated that are unrelated to market activity; for example, sometimes people give away small amounts of cryptocurrency to everyone who comments with their public blockchain wallet address; this causes a huge spike in comments (wavelet coherence between comments per day and price were also generated, but as was expected showed less significant relationships than posts per day and price).
But the hacks didn’t stop. In 2016, the DAO–a blockchain organization that was based on Ethereum–lost what was worth $50 million at the time, due to a technical error someone seized upon. This, once again, sent shockwaves through the community–but also had the unfortunate impact of normalizing these types of hacks for some people.