Sorry if this is tl;dr, I just really need to get this off my chest right now.
The whole card test is just another example of how psychics are not understood. They can't predict on command, the information comes to them at random. It's not like in hollywood where the beautiful blonde psychic detective shows up at the police station and tells them the whole story. They often don't have a choice over what they receive. Reading people, objects, or situations brings a flood of various details, some of it succinct and comprehensible and other times it's just wtf. "Psychic" just means extremely sensitive. They are likely picking up on things beyond the normal threshold of human senses. When it comes to the future, they are often given images or messages that don't make complete sense until the event itself has transpired. Saying that psychics can't exist because of a card game is so incredibly short sighted.
I guess the only way to shed more light on this is to divulge some personal details. I realize I'm opening myself to all kinds of heckling here but sometimes it just has to be done.
You're talking about psychics who are in it for the money, which is ignoring the entire other realm of special abilities that exist in every day mundane people. I didn't even know that seeing auras is uncommon until I happened to be talking about it in front of someone else who could also see them, and then we compared notes. I grew up in a haunted house with a Catholic family who was constantly trying to deny that there was a creepy old dead man walking the halls at night, slamming doors, clawing the walls, etc. I don't do dead people - I'm aware that they're there and sometimes they have things to say but they are pretty much uninvited into my life. Some sensitives are into that shit but I just don't do it. Life is for the living and dead people can just deal with it. If I'm about to enter a building that feels like it's crawling with restlessness or creepy, clingy dead people, I will simply not enter it.
There are other people in my family who have similar abilities to me so my assumption is that there is a genetic basis for these heightened perceptions / different filtering systems, etc. Science takes a lot for granted in assuming that everyone shares the same basic perceptions when in reality it's always going to be a spectrum. Most of the population falls in a predictable range while a slim percentage fall outside of it, and an even smaller percentage (like Edgar Cayce) fall in the extreme subtle range.
I'm a psychic and I have nothing to prove to you. I'm not trying to make money or self-aggrandize, and this is generally something I keep 100% to myself because the majority of the population at large is either indifferent or hostile. And it's North America and Western Europe that seem to have the biggest beef with it. Everywhere I've been in the world, people are not only open to it but they encourage me to share my insights with them.
You can really believe whatever you want, it has no relevance to my life. If we hung out in person you would just see how weird and inexplicable my life is, but trying to teach you these things over the internet is like trying to tell a person who has been blind their whole life what colour might look like. If you don't have the sense then there's no point in trying to convince you it's real. My issue here is you showing up in this thread to bulldog it with pseudoskepticism. The OP is not asking about whether or not psychics are real but if the price they are being asked to pay for psychic services is too high.
You're asking me to prove something scientifically which, according to material reductionism - the foundation of modern science - can't possibly exist. I don't perform on command and I can't force you to step outside of your mental confines to be open to something that truly operates outside of your model. Of the real psychics I've met, none of them would subject themselves to hostile testing because a) they have experienced alienation from the world their entire lives due to not being able to relate their experiences to 99% of the human population, b) the experimenters are likely going to treat them like they are frauds, liars, delusional, potential psych patients, or just unbelieveable right from square one before testing even happens (even if it's not said, we can FEEL your disgust, and that will affect the testing process), c) many are incredibly sensitive introverts and the lens of scrutiny would be intolerable, and d) most of us just have nothing to prove to you.
I'm not going to go to science. Science can come to me. For us it's like looking at a dog trying to understand how to drive a car. You're not going to get it through your intellectual mind. You'll have to delve into a lot of ancient texts and move beyond your narrow epistemology in order to be able to start grasping just how this works. When material reductionists in the west open their square little left-brains to the world of non-materialism I will be more than happy to go over the fine details of my unusual existence with them. Until then, they can keep dealing with people who wish they were psychic but aren't, and believing that we're all just quacks. They are never going to attract the real deal because the real deal wants nothing to do with them.
James Randi... lol. I would never want to be in the same room as the guy, or Richard Dawkins. They reek of stagnant, closed minded, old man energy. Their field of rejection is so high that they won't even see results if they are staring them square in the face. I would much rather deal with people whose creativity and spiritual faculties are at least remotely in tact.