Hi all! I have recently researched “Ethereum Request for Comment.” It is very interesting that ERC 677 is trying to merge ERC 223 with ERC 20 (make it backwards compatible). Also I found it interesting that ERC 721 for non-fungible tokens is accepted as a standard which I did not know earlier. It is not a type of information that I could find in articles, so I had to check for the status of ERC on Github. 
Although I know that ERC 20 & ERC 721 are completely different smart contracts, I was wondering if these two could be made backwards compatible as well? 
Share your thoughts on the topic 
