sepulchrave, on 05 November 2009 - 04:02 AM, said:
Why is there no evidence of ancient aliens? To answer this question we must apply Occam's razor1, and a lot of footnotes.
Although our technology is far from being as advanced as that of our ancient visitors2, we are approaching the threshold. In almost every field our major advancements in technology have either been or been associated with advances in computing. However we are rapidly reaching the limit of what doped-silicon based technology can achieve, and current progress into semiconductor and metallic alternatives (spintronics, photonics, etc.) are going nowhere3.
The way forward, of course, is with quantum computing. And how will quantum computing be achieved? It is already well known that the human brain possess a high degree of quantum entanglement4. This is not enough for an ultra-high-tech society5, of course, but massively parallel arrays of organic neurons coupled to Bose-Einstein condensates6 cooled to lHe temperatures might just do the trick. Of course once the aliens left, the lHe boiled away and the organic components quickly rotted - leaving no trace.
Ok so we've got their computing part out of the way. Now how did they get here? Obviously space is really big, and the idea of just flying through it is laughable7. The answer: the ancient aliens traveled around via wormholes. If you can manipulate the web of space-time to create a tunnel to take you somewhere else, why bother doing it from space8? You can just create a wormhole from the surface of your planet to the surface of the planet you want to visit9.
Now how do they know where to go? Well, back at home they had tachyon sensors. It is well known that the presence of mass and energy warps the fabric of space-time, and therefore modifies the trajectory of superluminal tachyons10. The tachyon sensor arrays allowed the ancient aliens to probe thousands of planets from the comfort of their own home!
Now the first worm-holes to earth were no doubt a bit of tricky business. But once the aliens established regular contact with our ancestors they required something to "lock on" to. And what better way of modifying the space-time continuum in a distinct manner than placing large, massive objects with unnatural flat surfaces and right angled corners 11?
Truly we are but hapless Aegeans caught in a labyrinthine game of intrigue and mystery. Secrets and lies! Secrets and lies!
Lets establish a few things here, you seem to have not a clear idea that everything in computer science is interlinked and related in some way. For example :
Photonics also relates to the emerging science of quantum information in those cases where it employs photonic methods. Included are all areas from everyday life to the most advanced science, e.g. light detection, telecommunications, information processing, lighting, metrology, spectroscopy, holography, medicine (surgery, vision correction, endoscopy, health monitoring), military technology, laser material processing, visual art, biophotonics, agriculture, and robotics.
The storage density of hard drives is rapidly increasing along an exponential growth curve, in part because spintronics-enabled devices like GMR and TMR sensors have increased the sensitivity of the read head which measures the magnetic state of small magnetic domains (bits) on the spinning platter.
How is that "going nowhere"?
As to Quantum computers you understand the theory well enough, from what I can tell, but your theory of the actual machine is actually wrong I think.
For example, there is DNA computing, which is a form of computing which uses DNA, biochemistry and molecular biology, instead of the traditional silicon-based computer technologies. DNA computing, or, more generally, molecular computing, is an actual reality, if still in infancy. The first DNA computer developped is MAYA-II (Meaning Molecular Array of YES and ANDNOT logic gates), based on DNA Stem Loop Controllers, developed by scientists at Columbia University and the University of New Mexico.
There is the Trapped ion quantum computer, which is a type of quantum computer, where Ions, or charged atomic particles, can be confined and suspended in free space using electromagnetic fields. Qubits are stored in stable electronic states of each ion, and quantum information can be processed and transferred through the collective quantized motion of the ions in the trap. Lasers are applied to induce coupling between the qubit states (for single qubit operations) or coupling between the internal qubit states and the external motional states (for entanglement between qubits). This kind of computer is being experimented with in university's all over the world.
You see, no need for massively parallel arrays of organic neurons coupled to Bose-Einstein condensaters cooled to lHe temperatures. Given a few years we are perfectly capable of doing it on a much smaller scale than you propose.
Tachyons as far as I know are still a hypothetical subatomic particle that travels faster than the speed of light. Main word being hypothetical, suspected but not proven, no experimental evidence for or against the existence of tachyon particles has been found.
In physics, a wormhole is a hypothetical topological feature of spacetime that is fundamentally a 'shortcut' through space and time. Again, hypothetical.
sage0409, on 05 November 2009 - 05:03 AM, said:
I think the fact that my own ancestors are one of those this theory affects makes me mad. Why is it so difficult to think that maybe just maybe these ancient civilizations were in fact that advanced and intelligent? Do we need to say little green men or whatever aliens from another world look like, gave them their technology? Nah, I disagree just for the indignation of it all

I can agree whole heartedly with that. Saying lil green men did it is just not giving our ancestors enough credit.