Looking for signs the Bitcoin panic is over

A remarkable 2017 for Bitcoin turned into stomach-churning terror for investors just before the holiday weekend when the cryptocurrency had its worst week of trading in four years.
While exact values can vary by exchanges, the value of Bitcoin has exploded from around $1,000 at the start of the year to about $20,000 in mid-December. Suddenly, everyone from serious investors to casual hobbyists who had bought Bitcoin as a novelty had a windfall on their digital ledgers.
Then last week arrived. Th