The reason on what makes Bitcoin a relatively good investment is its volatility and decentralization which leads to its fluctuation on its price. Depending on the price on the market, one has the opportunity and potential of doubling their initial investments in a short-amount of time compared to the traditional methods of investing present in the market.
What it lacks is the security and guarantee of your investments, unlike in stocks and bonds, there is a security and collateral in-case your investment losses.
That is not true. If you "own" AAPL (Apple) in your brokerage account you DO NOT own Apple shared.
That is a common misconception similar to the money in the bank being yours. Once you deposit the funds it is no longer yours.
With Bitcoin you own your own keys. Period.
What are you talking about? When you buy shares in a company you technically own a small portion of that company. This is the reason why the stock markets exist. Companies want to raise capital and one way is to go public with an IPO so they sell shares which represent stock in the company.
The company does well, the Earnings per share will increase since the company is worth more and the stock price will go up and you willl make more money.
But you actually do own part of the company. You don't is when you buy an AAPL call because you are just buying the call for speculation and most likely will sell before expiry, if you execute the call then you are a shareholder.