Until that is proven you have no ground to day someone with coo would see him .
Lol I forget FS is literally a thing that Kat, Kaido and Luffy all have proven.... not to mention we have a blind man name Issho that discredits every bit of nonsense that you want to try and spit out..
Also not equivalent anyway
@MUUGEN
As if you can “see” something that is going to happen in the future lol
Observation haki ≠ eyesight
They may be able to know how he will move but that does not mean they can see him. Garp couldn’t see Shiryu when he blocked his attack.
Literally Issho and Usopp moreover Issho has proven observation/eyesight. Let's also not forget Luffy trained for2 straight years blindfolded when it came to Observation......
LOL if you can see the future you can literally see a future of sanji going invis and where he will reappear... are you braindead.
& shiryu lol you've already proven yourself won't literally sensed him and took his attack on to save koby, try again.
btw since it doesnt seem as if either one of you understands what exactly CoO is.
Observation Haki allows users to sense the presence of others, even if they are hidden or camouflaged, by detecting their "aura" or life force, which means even an invisible Shiryuu could be detected by a skilled Haki user.
You are both illiterate, please try to understand the story you're reading.