How can you squeeze recovery data into smaller storage space than you’d need for a second copy of a file? Using codes, explained here.
mirror
Between 1905 and 1916, he often painted his models in front of a mirror, and played games with their reflections.
How often, and how much? Decide by thinking through how you would use your backup to restore your Mac after disaster.
Understanding the optical principles of reflections ensures that you understand how they should appear.
The Eclectic Light Company 