in the past few days I saw Bitcoin is experiencing a continuous decline in value, what is the reason?
First of all, bitcoin is only experiencing a bear move in price and not in "Value" please take note, as for those that have years of experience in bitcoin and cryptocurrency at large they will understand the need for this and i believe they are not moved by such, now let me explain this further to you, bitcoin as a digital currency is designed to be volatile, volatility means there wont be a stability in price or in other word no fix price for bitcoin, now you can understand if today the price is worth $38k before the end of the day it might arrived $40k and beyond.
This quonote the model of demand and supply we were taught in highschool, whereby when there is shortage in supply, there will be an increase in demand and as a result this may lead to inflation (but here we can assume inflation to be volatility in price) and same applies in the opposite as well, now people have the opportunity to make profits, place a buy, and then the economy boost back to normal or even beyond.
If you're a trader, customers wouldn't patronize you unless they have a demand on what you sell and if you don't sell you can't make profit, now applies this the other way round and see what you stand to benefit, and same is the model of bitcoin price and volatility which does not have anything to depreciate it value, else nobody will want to bid for bitcoin whenever it runs deep.