Learning a new things is good and I'm also a learner. By the way, just follow the instructions and read all the thread to know and do some research about crypto currency.

The price of Btc fully depends on its demand. The more it increases, the higher the price and go the moon as a trading language.

First of all, know about more specifically and then when you will able to join in trading then you will know more deeply about currencies price such as Btc or other altcoin.

This is a basic rule of everything actually. It is the famous Supply and Demand model. Basically yes, this affects bitcoin price, but as any other commodity in the market, other factors can also influence its price.

On a long term basis, the price will tend to go up, but it should go up slower and slower as the years and decades pass. This is because the thing people use to compare value loses value yearly by (foolish) anti-deflation policies of countries who just can't bother to read the Austrian economists and are scared of deflation, which Bitcoin is designed to be.

So all things equal (say in 100 years), if you then always moved all your money into Bitcoin, it would "earn" 2%, but that is actually everyone else inflating at least 2%.

Think of it as if you today moved all your money into gold, and only at the moment you were to buy something, changed only the minimal amount needed to purchase things (because the shop won't take your grams of gold directly). Of course real gold is a hassle to deal with. Bitcoin actually makes things easier.

I guess Digital Gold is an ok analogy.

Its correct demand and supply gives the price fluctuations in the market for every cryptocurrencies. So we need to understand when the marketplace value will increase and decrease and why it is happening.
just be attention on beginners and help board to learn more about Bitcoin and its technology.

Yes that's right it is determined by demand and supply so the law of it applies. And that's why it is so volatile and there's no way to be sure on what's going to be the next price of bitcoin if ever you want to find it out.

What's going to be your next question?

you can't forget about supply. the full mechanism for price discovery is supply and demand.

if demand increases by x but supply also increases by x, then the price will remain the same. so when demand outweighs supply, price rises. when supply outweighs demand, price falls.

this is still an oversimplification of course, but it's a better model than only focusing on demand.

Yes, it will affect to bitcoin price to increase but don't forget that it depends on how much big bitcoin in the next price or the supply because if the supply still has a big amount, the price will not increase in short. People will need to wait until the supply is gone so the price can grow to the next price and sometimes, the price not increase although there is a big demand from people to buy bitcoin. But in a long time, the price can move to the higher price, and that means, the price will increase too.

Whenever people or investors invest into bitcoin the price go up and when funds are flow from bitcoin to usd or any other currency it means bitcoin is bearish. The inflow and outflow of funds is still subject to the economic laws of demand and supply of money. However to make it easier expert has developed many economical and technical indicators that predict the inflow and outflow of money for those that want to invest in any of the assets and it is good now that you are new to develop strong desire to learn how this market works before investing.

Maybe right, because bitcoin price determine of market. When people sell and buy bitcoin and then we can decide if bitcoin price is rised or dumped. For a lot of reason that can affect bitcoin price, market is something that we can called decide bitcoin price increased or dumped.

It is actually easy to understand.
Think about any rare item in this world. E.g. Monalisa painting by DaVinci, gold from shipwrecks, Harley Davidson bicycles.

With them being rare the demand is getting higher. Same with bitcoin.
The total is supposed to be 21million but there are a lot of it that are now missing or already lost.

Understanding the market will be easier if you think like that.