Note: this topic branched off of this discussion: CGC Slab Issue. Comics confirmed resealed. Cards can be resealed too
Someone who hates cgc does an experiment no bias there then lmfao. We need a pro cgc to balance it out followed by a neutral to give the actual answer.
Did I say no bias? You can be biased and still be correct. Either you can reassemble slabs or you canāt. Itās a very demonstrable claim.
Being biased affects the result consciously or subconsciously you can not be biased when conducting an experiment and get a fair result.
Perhaps Iām making a mistake engaging with you in good faith here, but this is a completely irrelevant article and point. As @pfm has already pointed out, oneās personal opinion on PSA or CGC has zero influence over whether CGCās cases are mechanically able to be resealed without evidence of tampering. You donāt need to conduct an experiment because there is no causal relationship to be investigated.
Perhaps someone who hates CGC is more likely to make noise about it, but that is irrelevant to the mechanical fact that the cases can be resealed.
Thatās great that you can google for research papers but did you even read it? First sentence:
Scientific progress rests on reliable data, yet data collection is often subjective. Subjectivity can create biases, many of which derive from cognitive and sensory biases common to us all.
Key word: subjective.
In science, research that is biased or financially motivated happens daily. Thatās why we declare what our biases are in the published work, just like the paper you linked says āThe funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.ā
We donāt throw away biased data, we take the result and weigh it with the bias.
In the case of this thread, bias is irrelevant. The question is, can you systematically separate a CGC slab and put it back together without being able to tell from pictures? The burden of proof is on showing that you can. Itās a very simple falsifiable claim. Just demonstrate you can do it. Itās not subjective. If you think the video is intentionally misleading (aka lying) or that somehow the bias is changing the result, please provide that evidence. Otherwise we are arguing that we canāt trust that fire can be put out with water based on a video of a firefighter doing that - because clearly the firefigher has a bias against fire.
Again, itās a simple thing. If you think thereās a concrete reason that you canāt reassemble a CGC slab systematically, please explain. The burden of proof has now shifted because itās been demonstrated in both comics and in cards.
Ironically, you have show the consequences of bias in your response. The evidence is overwhelming on one side. Even CGC admitted it was an issue. But you donāt like the evidence so you dismiss it with weak claims and citing a paper I donāt think you even read, or at least thought criticality about.
Once again, itās always wild to me that we canāt just go āwow thanks for the information, Iāll be a bit more careful when making purchasesā like we do with PSA stories. Instead we have to engage in grading politics for the millionth time.
Same but Iāll never turn down a debate over scientific philosophy. Easiest bait of all time.
Iām happy to engage. Please watch this.
@pfm just read your last message and yes the paper was just a quick bit of info not the whole answer to everything.
Please explain the mechanism of how bias cleanly opens a CGC slab and why that canāt be leveraged by a scammer. Until you can, thereās no point in engaging further.
None of our experiences are the same. What you see and hear etc is not what anyone else does. It looks like we agree with others on some stuff but dig a little deeper and youāll find we donāt.
An example here not the whole answer just a tidbit.
Prime numbers are key to the universe existing. On a vastly smaller point but relevant none the less the foundations of civilization relies on them not being cracked. A taster for those interested.
when you spent 4+ years on a theoretical mathematics degree and need to make sure it does not go to waste
Then Iām sure you know about standard trial division and using the primes up to the square root of the number you are checking ie 173 the square root is 13.15 so check 2,3,5,7,11 and 13. This is enhanced trial division you wonāt find anything on it except my stuff.
Iām just not sure why in the year of our lord 2024, people are still trusting any grading company. I believe binders are the only way of collecting that will withstand the test of time. Binders, like vaultxās side loading zipper enclosing various sized for various collections for example, have come a long way and are now premium and secure unlike how they were back in the day. Graded cards are a fad and will die out as more and more scandals dissuade people from trusting any third party authenticator.
We get it, you donāt like grading. Also love the mental gymnastics of grading being a fad, even though its been around longer than pokemon.
lol iām sorry. iām just giving pfm a hard time. I support whatever makes people happy
You fell for the pasta 
Dang I should have checked discord before biting the bait.
When were PokƩmon boxes and packs discovered as resealable? Lots of noise behind grading companies. Carry on.
Not sure if youāre trolling because this thread seems to have devolved, but hereās my honest answer to your question:
Packs have been resealable since base set, and boxes & decks have been able to have their cello wrapping resealed since the start. Re-sealing packs is easy - early packs were glued shut (really, more a kind of adhesive than glue) and you could carefully iron them shut if you had the technique down.
Cello wrap on boxes could be forged. It was much harder back then, but is easier now if you have access to the right equipment and cello wrap (total cost about 2k).
Resealing the cardboard perforations on booster boxes and decks is not possible as it is a destructive process - imagine āfixingā a piece of paper torn in half and youāll know what I mean.