Is FLAC really lossless?

Related questions

1. Can you convert WAV to FLAC?
2. Is AUX or Bluetooth better?
3. Is wav the best audio format?
4. Is FLAC the best audio format?
5. Which codec is better g711 and g729?
6. What is g711 codec?
7. Is sound quality loss over Bluetooth?
8. Is Avi better than mp4?
9. Is FLAC better than CD?
10. Is mp4 the same as mpeg4?

Tags

1. #inefficient
2. #better
3. #second
4. #awesome
5. #reasons
6. #smaller
7. #including
8. #windows
9. #package
10. #illegal
11. #lossless
12. #first
13. #audio
14. #extremely
15. #allows
16. #files
17. #marking
18. #space
19. #everything