I still remember very well I was told by my friend at the end of 2016 but I didn't pay much attention to it. even I don't take anything seriously. 2017 after bitcoin was widely discussed on social media, especially my friend who often shared information on his social media. it intrigued me.
and finally early 2018, the first bitcoin asset that I kept till this year. because of a need, I finally had to let it go.