Although this is an atheist forum and the existentialism a la Sartre is atheistic I would still like to say that existentialism has more in common with idealism than with science.
Existentialism seems to be the most popular philosophy today, knowingly or unknowingly by most people. I might have to point out first that the idea of existence for existentialists has nothing to do with the fundamental substance we call matter, that is essence; existence is instead about human potential, choices and awareness.
Sartre (or was it Simone?) coined the phrase "existence precedes essence". This means that according to existentialists, humans can change their essence - what they are inherently - by choice or increased awareness.
New Age wich is a related doctrine says that humans have "infinite potential" and can "manifest their destinty" and "choose to be happy" and so on. What might not be apparent to some, New Age is simply existentialism in a different dressing. What also might not be as apparent to some is that existentialism and New Age holds a very strong influence in the market and in the marketting campaigns. And again what might not be known to some is that New Age and existentialism traces its roots back to Christianity.
The reason that existentialism and New Age has been so popular recently is because the ideas of taking control of your destiny is very seductive and thankful for the market to show off their products with hollow eyed skins or perfect toothpaste smiles of "self realized" specimens. Especially in dire circumstances, people dream about becoming gods, and existentialism and new age is preaching to them that this is something they can do. The basic idea is that you are 100% responsible for your life and your choices.
So why is this philosophy bad? Well, the reason is that when you are being told that you are fully responsible for everything in your life that means that everything that happends is also a personal message to you.
New Age (and also Buddhism) takes this a bit further and states that everything you see is a reflection or a projection of your own spiritual state. So if you see wars and misery that only means that it is your own spiritual development that has been swallowed by pessimistic attitudes.
If something goes wrong and under normal circumstances you wouldn't be blamed for it; New Age and existentialism still apply responsibility for what happened unto you, your awareness and your choices. The weight of guilt that this idea has would be unbearable for anyone. But what existentialism does therefore is to say that if you don't take responsibility then you fall into "bad faith" wich is a sort of existential or essential defect. And that leads again to another idea of sin basically. Because if you are 100% responsible and something goes wrong despite your very best wishes and efforts that means something must be wrong; and it is not uncommon that existentialists therefore believe that they have a "defect essence". Kirkegaard called it his "disease" and talked about "bad faith".
And concerning the control of your life, eventually this idea becomes ever more subjective and personal; if you find that you cannot control your life by your essence, like your looks, your biological constitution, then perhaps you can control it with your choices, with your awareness, with your mind. So if circumstances are bad this means that you could change them by simply using your mind or your willpower. Here New Age capitalizes on the "The Secret" franchise, wich uses a collection of magical "laws" like the law of attraction, so that you can imagine the life you want to have and it will be attracted to you.
This means that if circumstances are bad, it is because you and only you are not wanting good things for yourself. On the social scale this means that if bad things happends to people they have only themselves to blame, everyone can manifest their destiny of their choosing, the market is full of opportunities, you just have to "want" it. And if you can increase your awareness and your willpower to use it to create the world into your own like-ness what does that mean? It basically means that you become a god. And if you can become a god, couldnt you become immortal as well? If existence precedes essence doesnt that mean you can choose your essence? Why not choose an immortal essence? Certainly, you just have to "want it" bad enough.
The seduction of existentialism therefore is the age old dream of gaining that divine power over life and death. If you are in control of your essence, then that would imply that you could "choose" to become immortal. If you are in total control of your life then you are in control of everything that happends in your life as well, and that basically makes you a god.
From this it is not very far from getting a diagnose of schizophrenia actually; because if everything that happens is somehow of your own making or that it is a personal message to you; then we are talking schizoid personality disorder. The insanity where a song on the radio is playing just for you or that the radio is transmitting messages directly into your mind to gain control over your actions. Because it is "all about you".
We live today in the I-generation; we have I-Phone, I-Mac, YouTube and Facebook. People are giving out the most personal and private things as a universal spectacle and seeking approval; and perhaps also that there is a reward of looking sincere (and therefore responsible) by not wanting to hide anything. Everything is being exposed, analysed and commentated. People feel like its their duty to expose all about their lives, from the most insignificant aspects to the most dramatic or the most embaressing. And there is always a jury ready to send their comments or approval. The threat of isolation is always there; hence the success of Facebook. And if you dont have a computer you are severely cut off from society.
The balance seems to be between ego and the judge. From existentialism and its ego gospel being preached everywhere people are made into selfish narcissists, and then they are being "put on the spot" by an absolute jury while everyone cheers on. And this dynamic is played on heavily in television, especially in the "Idol" franchise, and all the cook programs or the inventor show with its "Dragons". It is all about maximizing your productivity while the jury solemnly looks on and never hesitates to give its sterile, insensitive decrees.
Existentialism therefore turns into a toxic individualism where everything revolves around you and yourself; Others may exist only to satisfy your needs and desires, or to be "your teachers" to become a more responsible person. And this message is latent in the market as well and it has produced a society that is superficial and self centered but also more paralyzed and fearful than ever. The financial crisis and how it puts people into absolute despair is a sign that people from this selfish mindset has become so misantropic that they cannot think that anyone else could be there and help them; and consequently they are all in the hands of those who dominates the market. And hence the "Occupy movement".
It is also interesting to note the popularity of conspiracy theories today. Because as I said, a person who is eager to believe that the radio plays a song just for him might just as well think that there is an agency out there trying to get control over his mind.
So it seems that the diagnosis of present society with its existentialism and New Age leanings is something like a paranoid schizophrenia.
