If you buy bitcoin right now at $66.7k and then you see it going down to $15k, how would you feel? For sure you will feel scammed because your investment loses 75% of its value. Bitcoin is not a scam, but is a high-risk investment and just like it can go up to the moon, it can crash hard, and not everyone can take that risk. So, bitcoin is not for all.
And even if Bitcoin is not a scam by itself, there are a lot of scams involving Bitcoin, and that only brings bad reputation to the coin.
Blockchain is the technology behind bitcoin. The blockchain technology can be used for numerous application in business. Bitcoin is the means in which miners are paid for facilitating transaction throughout the blockchain. Without bitcoin the blockchain wouldn’t work. As blockchain technology becomes more widely used, so will bitcoin. Not only that, but bitcoin is a way for anyone , anywhere to send funds globally, securely, cheaply, and almost anonymously. However I am not saying you can't lose money on it. If you don't believe in the technology then definitely don't invest more than you can afford. Bitcoin is not really about money or investment. The coins have value and people do invest in them but Bitcoin is about allowing trustless trade over a digital medium. It’s pretty simple in how it works and is not controlled by anyone. And there is the reason it can't be a scam. Because no one is running it. The technology may fail to live up to the hype. The value may go up and down. But it is not a scam.
Apologies to the BTC haters. And other idealist. BUT BTC is a real product. And therefore is not a scam. It may be as bad product as some like to argue the technical details. And it may not end up as the top coin in the future but right now it works, you can buy it, and more products like the lighting network are being built on it. Everything in life is a risk to some extent, it’s up to the individual to do their own research as to whether an individual investment is right for them. My best suggestion as a way to obtain the level of conviction I have in Bitcoin is to read widely (plenty of material in libraries on this), possibly follow the logic of Michael Saylor on Youtube Bitcoin, and from there you can draw your own conclusions as to whether its a scam.