Investment into bitcoins have been a very lucrative investment in 2019, but like every other investment buying when we have just seen a 100% gain can be dangerous, but if you buy to hold for years, then every day will be a good day to buy bitcoins.
Crypto technology will continue to grow and there will be no bad words that will appear in the future because everyone will use virtual coins to buy whatever they want. I will try like some people who save their Bitcoin for the next 10 years.