Rubbish? One thing is clear for me. You don't use your brains to do things. You go by what is told to you by others or Wikipedia in this case. Who or what is Wikipedia? Is it some divine being? Can't it be wrong? You may think that you cannot prove them wrong. But I think I can and I rate my intelligence far above than the average thinker.
You said you are an optimist. Do you use stop losses for your shares? If you do use, then you are not an optimist. If you don't use stop losses, then you know what will happen to your portfolio in times of market crashes like the ones we are just seeing. Go figure for yourselves.
Thinking is power and try to use it. Don't be a duck and follow something blindly just because it is in the dictionary. Understand that dictionary is written by humans and they are not perfect.
