Isaac Asimov on Security Theatre.
schneier.com
schneier.com
I don't know if it is appropriate here on HackerNews, but there's this one Philosoraptor (an image meme) which just perfectly sums this up in a single sentence:
"If terrorists hate us for our freedom, does this mean
they're starting to like us?"
http://i.imgur.com/XbmFg.jpgAs for other measures like the Patriot Act, I'm not sure that security theatre was the prime motivation for their introduction.
I see people every day come into an elevator and press the door close button like it is the only way to get air. Nobody realizes that the button does nothing. Furthermore many do, but they do it any ways on the off chance that it saves them an extra millisecond here or there of waiting. It never gives any benefit. However "may as well do it just in case it works". Trivial to disprove but still.
God: People worship. Why? Do we know god does exist? no we don't. In fact all signs point to got not existing. Why worship though? On the off chance that god does exist and we won't go to hell. It does not matter that there is no god, people will still worship.
Both examples are ways for people to feel better about something they can't control and makes them feel that they can.
Now the TSA is exactly the same. It makes no difference, or it does, all signs point to the TSA being complete horsecrap, but people want it just in case there is a possibility they can prevent an act of terrorism and save 10 people at the price of insane expenses, time expenses, people unalbe to travel, personal rights violated, etc.
I think there is no proof either way. I personally believe in God and am in fact Christian, but that is a personal choice based on faith and I have great respect for people who have chosen other faiths or who believe that there is no God.
This however is different. It can be shown that certain security measures actually are quite useful (sturdy, locked cockpit doors separating pilots and passengers for instance.) It can be shown that others are completely ineffective at their stated goals and seek only to avoid "donothingism" and fall into security theater
No, I think the TSA and religion are quite similar.
that's absolutely right. There is though a difference between a God and Organized Religion. For all we know Q is as God as any other and i do hope what he exists and enjoys the TNG on Netflix as much as i do :)
Arguments are one thing, evidence is something else.
> believe there is no God
That isn't what atheism is, or at least that isn't what most English-speaking people who describe themselves as atheist mean by it. Western atheists think the existence of any deities is unproven; it is not supported by the evidence.
That's not atheism, that's agnosticism.
I'm an atheist. I say the existence of a deity is both unproven and highly unlikely given the current evidence.
http://www.pbs.org/wgbh/nova/insidenova/2010/12/the-great-el...
If you're a fire fighter using an elevator you don't want the doors to automatically open or close when you get to a questionable floor.
When the fire key is turned the doors are manually controlled and only respond to those buttons.
Otherwise, the Open door button is for people wanting to feel good and the Close door button might as well be controlled by Schrodinger cat.
Adding another data point: The close button on the elevator in this building here works as expected. Press it, door closes _right away_. Don't press it, wait for the doors to close in a couple of seconds.
The close door button on the elevators in my work building work as follows:
1. After summoning the elevator, if I enter and press the door close button, the door immediately starts to close--even if I have not selected a destination. If I do not press the door close button, the door closes automatically after several seconds.
2. If I press the door open button to interrupt a door closing, as soon as the door finishes opening the door close button makes it close. If the door close is not pressed, the door closed on its own after approximately five seconds.
3. When the elevator arrives at a destination floor, if I press the door close as soon as the door finishes opening, it immediately starts closing. If I do not press the button, the door opens, waits several seconds, then closes.
Conclusion: your theories on elevator operation are inconsistent with experiment.
I wanted to point out that the door open/close buttons definitely have a function when the elevator is operating in emergency mode.
Allow me to expand further with an example scenario:
First off, an elevator's emergency operation mode is engaged by using a key. You may have noticed the keyhole before in an elevator car; it is typically located near the floor selection panel. It is primarily used by firefighter's or emergency personnel, in order to take control of the elevators.
Next, imagine a hypothetical elevator situation. The elevator is in normal operation mode. You step into an empty elevator car at floor 1, and you select floor 14 as your destination. Someone else enters the elevator car with you, and selects floor 3 as the destination. Now, floor 3 and floor 14 have been selected and are illuminated on the floor selection panel.
Assuming no other factors, the elevator car stops at floor 3, the doors automatically open, and the person that selected floor 3 steps out. But wait... you decide to step out too, because you need to hit the restroom. As it turns out, no one is entering the elevator car that you and the passenger just exited at floor 3. The elevator car is now empty.
What happens now?
The doors automatically close. No one is on board the elevator car that you just exited, and floor 14 is still selected. This is immutable; assuming no other factors, the elevator car will eventually make it to floor 14, or be stopped by other passengers that are waiting for that elevator car before it gets there. In either case, the elevator car is out of your control.
Now, think of it from a firefighter's perspective. A firefighter does not want to be in a scenario where the elevator car is capable of leaving a floor, without his or her express command, regardless of whether the elevator car is being called by someone else, or if a floor has been selected and no one is in the elevator car.
This is what the door close button is for when an elevator is in emergency operation mode. In this mode, the desired floor is selected, then the door close button must be fully engaged and held until the elevator car begins to move. If the door close button is released before the elevator car begins to move, the doors will automatically open, and the elevator car will remain on the current floor.
In emergency operation mode, when an elevator car arrives at the selected floor, the doors will not automatically open. The open door button must be fully engaged and held in order for the doors to fully open. If the open door button is released before the doors are fully opened, the doors will automatically close. This functionality is designed to allow a firefighter to partially open the doors in order to assess a situation (e.g., fire, smoke, etc.), again, at his or her express command. Otherwise, the doors would automatically open fully, potentially exposing the firefighter to flames, or quickly filling the elevator car with smoke.
However one note is that Asimov's stories have one common theme that could not be known until now. Hardware is what drives everything. Today we know hardware is an enabler, software is everything.
Yes, we know that he was wildly wrong about what would be easy and hard about robots and computers. It is bizarre to go back and read his stories in which robots are walking and talking, but it takes a massive robot brain installed in a permanent emplacement to get little more "raw" computational power than a 1970s mainframe. Unless you travel back in time and reveal the secrets of robotic brains to those in the 1950s, it's a done deal.
In this, he has been proven wrong, as nearly all machines of industry are slowly becoming more and more automated, using hardware and software specialized to that particular machine.
As far as I can tell, AI is turning out like Philosophy. Back in the day, all science was philosophy. As a particular field of philosophy became advanced enough that we can actually do things with it, we broke it out into a science, like, say, physics.
The same is happening with AI. It used to be that natural language and image recognition were AI. Now that we actually have that technology working to the point where it can do useful things, it's no longer considered AI.
Both philosophy and AI, I think, are catchall buckets for "We want to study these things, but we don't understand these things well enough to properly define them."
I mean, it's a useful catchall, especially at first, but I think that breaking down a poorly defined field into many smaller but specifically defined fields is a natural part of scientific progress.
My guess is that we will reach the capability to build something that looks like asimov-style robots, but by that point we won't see any of the technologies involved as "AI"
This is clearer in the Foundation Series than it is in his Robot books, but it becomes blatantly obvious in The End of Eternity which only barely pays lip service to science, yet makes beautiful points about human nature in a painstakingly crafted and entertaining story.
I'm always struck by how that doesn't actually sound far fetched to me, but how crazy it must have sounded then.