Blockchain and Passwords - How Blockchain Can Make Passwords Obsolete

I've never written down my personal password's or even saved them on a file on my computer, and they are complex too.
Maybe I'm one of the lucky one that can remember them and guys that's all you need to do is train your brain to remember your password's it's that simple.
Remember you can accomplish anything if you really want to, you just have to train your brain to remember password is the best thing you can do for youself.
The only thing I find difficult about this software is how the hell am I going to remember a complex and long password as these blockchains give I'm talking about wallets the passphrases are long.

Source: https://cointelegraph.com/news/how-blockchain-can-make-passwords-obsolete
It feels like almost every day there is another data breach making the headlines. From banking to chatting with friends, the average person spends more than 10 hours online every day. However, most of the sites or online resources we use daily—from Facebook to Gmail—are secured using a simple password.

Most security breaches happen because of some sort of human weakness. A password may be too easy to guess, as studies show that 10,000 of the most common passwords, such as 123456 or qwerty, can access 98 percent of all accounts.

Other points of failure originate from people leaving their browsers open on public computers, writing passwords down on paper or in a file on their computers or simply getting tricked into giving away their login data.

Although we know what safe passwords should be, we tend to ignore this knowledge in favor of using easy-to-remember passwords because the fear of forgetting is stronger than the fear of being hacked.