many investors have been doing their best to advance bit coin since it was the first crypto currency.
No, that isn't right. Investors have been utilizing Bitcoin for personal gains, and not because they wanted Bitcoin to advance; it advanced because people were investing in it. These two are different things.
yeah thanks for highlighting me more but don't u think that if there was no investor in Bitcoin up till now no body would have known Bitcoin so as investors started investing Bitcoin started growing and making changes ,I know the investor are there for the gain but still there are the once who will still think about making changes .