ENCRYPTING YOUR DRIVE(S) CAN RESULT IN PERMANENT DATA LOSS IF YOU DON'T KNOW WHAT YOU ARE DOING OR YOU FORGET THE PASSWORD. IT IS YOUR (THE READER'S) RESPONSIBILITY TO HAVE BACKUPS SHOULD ANYTHING GO WRONG. Additionally, I am not responsible for any damage you cause to your system by following this guide. You are completely and solely responsible for any changes made and potential damage caused.
I am not an expert on this topic in any way! I just read some wiki pages, had done a dual-boot Arch install before, got inspired by