I am not unsatisfied with your various answers and explanations, but I had been hoping for a kind of short explanation that presents the matter in a kind of layman way.. It could be that I am kind of looking for a chart to show features of various previous systems to show which features each of them have and to see that bitcoin has many of the same features, but maybe even more.
With apologies for the late reply, I present you a sort of a chart, hoping this is what you asked

I had to spend a lot of time to imagine to to place all this information in a proper manner and the below picture is the best my (limited) imagination could come up with. If there is anyone which has a better idea, I can offer the information from the picture in an editable form. In order to create this chart I used Excel and then I saved the selection as a picture, but I still have the Excel file if anyone needs it.
Please let me know if this form is what you needed.
