Eventually there needs to be more than one

Scientist have always dreamed of one big, one exclusive, all-inclusive, exact theory that would cover anything that there is needed to be know of universe. This is good but surely not sole example of conflicting wish, which would make the actual wisher dispensable, when wish would come true. Luckily for scientist, universe seem to offer the more surprises and paradoxes the more you research.

Grand unification attempts

As tempting as it would be, one rigorous unification theory would have downsides too. Physics have fed the development of technology, industry, economy, political societies and even human interactions. Achieving suddenly the ultimate finish in physics would slow down scientific creativity in those other fields too. Those are fields that cannot necessarily reach "the ultimate pinnacle" and they benefit more from progress rather than from getting to the finish.

Modern societies are based on technology.

Nowadays The Standard Model is often considered the most profound scientific theory covering pretty much everything. Well, almost everything except that one bad old news, gravitation. To my opinion standard model or any other model cannot cover every measurable property without being conflicting with itself. My argument is that if every measurement contain inaccuracy (Heisenberg's uncertainty principle), modelling single particle shouldn't be done with same method that is used in modelling huge amount of particles. Increasing the amount of particles in the model would increase the amount of error in measurement drastically. Thus modelling huge group of particles would be measured more accurately when they are measured as a group instead of individuals. Nature sets us limits how she lets information be extracted from her.

Or maybe things actually start to behave differently when they are put together and therefore there even cannot be one theory for the small and for the big. Also big problem of these wide angle theories is that every one smallest detail must be completely and fundamentally correct and interpreted perfectly. If there is a even small flaw in the philosophy in the smallest scale scenes, error is brought up and enlarged to macroscopic level too. And sadly there is not (well at least not yet) any way to study and measure anything that is much smaller than femtometre (10^-15 m).

Things smaller than scale mentioned before are products of rationing and philosophy. Thus they are in a way also matter of believe and might needed to be rethought once in a while new scientific information is discovered or new revolutionizing ideas are brought up. Once in a while brilliant scientist manage to engineer new test setups to research beyond familiar boundaries. Scientist who manage to contribute via thought experiments are usually already refined in public. This has happened many times in the history of science and is especially active now in CERN - organization.

But in the end what distinguishes belief systems from science? To my opinion it's that you recon that you could be wrong, and you keep your mind open and prepared for new ideas if they offer better, less paradoxical description of nature than those what we had before. The key point is to collaborate and to stand on the shoulders of a giants instead of trying to gain authority or personal benefit via knowledge.

The illusion of time and does it have an arrow?

I decided to continue on the subject of time on this post for it's such a rich source of philosophical ponder and paradoxes. Time is too complex term to be described as a line, line of historical events until the time stops into the moment you recon as the present. Humans have intuitive hunch, similar as described above, of the nature of the time, which is linked with consciousness. Yet when the concept of time is put under scientific though, interpretation of what time is or can be start to straggle.

Time is a good companion of scientific diagrams. When you have one scientific quantity on one axis of Cartesian plane, it's in many cases informative to have time on the other. Still nobody cannot exactly tell what is time. A moment which is passed before you could really get hold of it? Maybe a periodic function in which phase is the only thing that truly matters?

The more you stop and think about time the less it makes sense. Then after awhile you realize you've been thinking quite a long time.

After reading Etienne Klein's Conversations With the Sphinx book I truly realized how incredibly complex and irrational the concept of time is. Time seem so familiar and essential thing that it is hard to accept that there is not a "right" scientific way to picture time. Perhaps the most important issue about time is that some events suggest that time is irreversible and other suggest that it is reversible. In other words it's a battle of a line like, and universal and dynamic time. Surely it can't be both at the same time?

Entropy as far as I know points out the direction of time and suggest that there is only one way to go. Then again many quantum mechanical processes (like strong interaction) can occur "both ways" and entangled photons can somehow transfer information instantly, reacting as if they were liberated from the tides of time. One could state that time marches on and swings back and forth simultaneously.

The basic unit of time, second was originally defined by the earth's orbit period around the sun. Nowadays it's about "the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.1" So we have gone from huge macroscopic event to theoretical (since ground state means 0K) quantum mechanical event that is basically a matter of probability. These two cannot really be compared, still they both have posed as the ultimate description of nature.

Even though for us humans time seems to be lost for good once it's gone by in our macroscopic world, quantum physic suggest even that the time travelling could be possible someday. Well at least for a single particles according to Wheeler and Feynman. This following video will show you why this time travelling would be a very bad idea if it could be executed in a human scale: http://www.youtube.com/watch?v=75nBenOWul0