Explain the impacts of different ways to generate keys from a mneumonic

[SimiHunjan]

Problem

A mnemonic is a 12 or 24 word recovery phrase. You can create a mnemonic with or without a passphrase. If you create a mnemonic with a passphrase it uses that to then derive the key. If you create a key with an empty passphrase the resulting key is different than using a passphrase.The passphrase is a different concept than a password on the keys. The password and passphrase can be the same.

Solution

Add more information about these nuances to the keys sections

Alternatives

No response

[jbair06]

The mnemonic is not actually created with a passphrase. The passphrase is used during key creation, however, as stated in the 4th line. It appears a number of applications do not require, or have the option to use, a passphrase.