Bitcoin's market cap and price may look so bad today but it will finally recover anytime this year. Improving its market price to 10,000$ is one of the price i've been waiting for it may be a signal that bitcoin will finally rise again to 20,000$ mark.
Or next year, or the year after, or the year after, or the year after.
In previous year the market of Bitcoin reached at the highest possible value and now fell down in 2018 because of its demand, people were feeing difficult to invest in such a high market because every person can not afford to get Bitcoins in a high price.
The price after a year follows an increase trend or improvement that is called average improvement. In 2018 and in the upcoming years the price will follow the increase trend with market fluctuations.