When i registered at bitcointalk at June 24, 2017, the price of bitcoin at that time was around 2,800 US dollars.
I know bitcoin way back in 2016 because my officemates joined bitcointalk in 2012 - 2013 and they always talked a lot about it.
At first i dont really give attention to it but when i hear them talking and they seems pretty happy i check it out and become surprised.
The value of it suddenly become x3 to the last time i checked.
At that time, i believe that bitcoin has truly great potential and i started joining in bitcointalk while also investing in bitcoin.