I don't think, Bitcoin investment is the best investment in the world OP, you mean if they offer you huge amount of funds to start an investment today and they stated the investment, estate investment, land and property investment and Bitcoin investment, meaning you will embrace Bitcoin investment and ignore others. There are many investment that is profitable than Bitcoin investment, because those investments required huge amount of capital before you can start such investment and you will going to double any amount you have use to start up the investment. I agree with you that Bitcoin has spread around the world to be more popular today, because it has helped nations to eliminated delay in transactions and it has also helped nations to reduced unemployment.
Anyone has an opinion on what is more valuable to them, and he believes in bitcoin, which is why he says it is the best investment. You are correct that they have something more reliable than bitcoin, and you need a large amount to begin with. Real estate, land, and property are all investments, but you can't guarantee that when you invest in them, you'll make a lot of money because in some places that don't have values and go and buy some lands, if the places haven't improved and have a lot of people, they won't buy them with a lot of money. So, op prefers to invest in bitcoin because he believes he will gain a large sum of money in bitcoin if he invest on it.
And I would prefer to start my investment with bitcoin and then return to Real Estate and other physical businesses, because I can utilize my bitcoin profit to acquire land while keeping my bitcoin going smoothly. However, if you establish a business and he does not favor you, you will undoubtedly lose your funds, so anything is risky, and everyone goes for what will benefit him most.
Bitcoin investment is always the best option to invest in online because is only him that is more better and can minimise your risk, many people have engaged themselves on online crypto update because people have started believing that there is a lot of opportunity on them if they are patient enough to invest on them, it is very hard to ask someone about bitcoin that he won't know about because he is full everywhere now, and I can say that is all this Airdrop some people are doing that make Bitcoin will gradually become something that people will want to invest in before anything else. I believe in bitcoin since it is volatile no matter what anytime he decrease i know that one day he will increase and you will definitely get something at of it is all about patient and get enough knowledge on bitcoin.