I am not new to bitcoin or cryptocurrencies but i am new to technical side of them. I know I am not alone too. Recently I see a lot of topics about SegWit, SegWit2x, UASF, BIP148, etc. and there are not a good article explains what they are to newbies. All I know is Jihan Wu is some kind of evil person 🙂 Seriously tho, what are these? Newcomers really needs a comprehensive ELI5.