Knowing the future, brain twist?

two weeks back I wrote about the movie Arrival. I did not really get into the problems that arise when somebody knows the future, I will try to settle this today.

Alright, lets say that you just acquired the ability to know what will happen in the future. Cool huh?

First problem, do you have free will (meaning if you can choose to do something or there is no way to actually choose anything)? Lets start with the answer: yes, you have free will. Basically two things can happen, if you truly know what will happen then you can not choose any other option which means that by knowing the future you and everybody else will lose free will if you could choose something else than what the ability tells you then it would not be telling the future. Something else could happen though, you could know all the possibilities that arise from your decisions and the decisions of others. Funny would be if you would see it for the decisions of others, then the ability would be useless for longterm predictions where people all across the globe would interconnect with their decisions (do animals have free will, which ones do and which ones do not?). You could for example see that in 40 years there are couple (a lot) of lines that go to Third World War but there would be so many people involved in changing couple of important people that you could hardly do anything with it. At the same time if your brain would be organized in the mess you would immediately know what option you need to take to optimize whatever you want to optimize. Much easier would be if everybody else lost their free will and you alone had it.

The real fun begins if you consider no free will aka determinism. You know exactly what will happen but you can not change it. Imagine standing on cross roads, you know you will turn to left, its the future and you can not decide otherwise but there does not seem to be anything that would actually prevent you from turning right. If you do it, it means that the ability was telling you exactly that from the beginning but then you would turn left…

Lets consider thought experiment:

There is a robot that has very strict type of thinking. It is standing in a hall way that splits into two corridors, left and right (it is driving towards the left). Nothing miraculous can happen there, nothing that would prevent the robot to go where it is programmed to go.

You are at the headquarters and know where the robot will turn or simply what will happen there. You tell this information to the robot and the robot will turn exactly the other way. For example you know that he will turn left. You send him the information and he according to his program turns right which means that your ability is not working and this simply can not happen, you can not tell him the direction because he would do the opposite. What will you tell him? What is the future?

There is one more line of code in the robot: if you get the information “you did not decide”, you will turn left. This is to make it harder, the future would switching between left and right indefinitely, meaning the robot would not do anything and we do not want it. The only solution that I came up with is that he will actually not decide, you will send him the information: “You will start going left but when you will get this information you will turn right. After hearing this you will turn left but when you hear this information you will turn right again…” it will continue and then it depends how the robot is made. If it waits until the stream of information halts then it wont ever decide and you will speak to him forever. If it will take the information and while it processes the next part it will start to act accordingly to it (meaning the opposite way), the robot will slowly move towards left or right. At some point it will be on the threshold which raises a problem of course and I guess there is nothing stable to tell him without destroying the ability that you gained, you know what he will do but you can not tell him.

The last part would be the same scenario as if the robot could teleport from the beginning but if you have to say the information then it will result in a paradox. In normal non-robot life you would probably run into more complicated scenarios where knowing the future would not alternate you decision which is the whole problem we are dealing with. But if you would not and your ability would HAVE TO work then… ???



Future challenge

about week ago I was future challenged by Star guy so now when I have time I am accepting it.

It seems that I should write about my future but it is not very easy so I visited some page Čtyřlístek štěstíand did some stuff for free to know what will happen:

Since I found cloverleaf I will definitely be lucky.

I used some random dices to see what is my future well… my number is symbol for balance, safety and energy.

Because of some random picture of rune I will definitely be balanced, nothing will lie in my way and I wont think about past anymore.

Well that is my future 😀

So here are other bloggers I will challenge

India Travel Diaries

Anne R. Murray

Daily Inspiration Blog



Civilizations: Dyson´s sphere

Again I will write about civilizations but this time only about Dyson´s spheres which I mentioned before as a thing which would be used by civilization of type II and type III.

View larger. | Artist's concept of a Dyson sphere via SentientDevelopments.comBecause there is high probability of all civilizations using energy, we assume that all “worlds” will need more and more energy as their population grows.
At one point there wont be enough energy on its home planet. They/we will need some source of energy which would be kind of permanent. Here comes this Dyson´s sphere because it is a sphere which surrounds home star and collects its energy.

First there are smaller types of Dyson´s sphere like a Dyson´s ring. It is ring of objects sharing the same orbit and collecting energy of star. They would transfer the energy by wireless power transfer.
Expansion to ring is swarm which is lot of rings around star. BUT those ring´s orbit would intercept each other so it would be really difficult to avoid some crush.
To solve this you would have to have statellites instead of satellites. Those would be objects which would be stationary and they would not orbit the star. Those things would fight with gravity by large sail which would be pushed away from the star by solar wind. BUT this sail would have to be extremely light.. when I say extremely I mean very extremely because paper has 80g for squared meter and this sail would have to be about 0.7g for m^2. This would require ultra light nanotubes.
Last type is sphere which would collect almost all energy made by star. It would be extremely difficult to stabilize it and collect all the material.

Civilizations: Kardashev scale

I learned some stuff about fermi paradox and alien worlds in past few days so I will try to do my best in describing this stuff. I found it really interesting.

So there is scale which is called Kardashev scale. It is scale that describes civilizations by three levels: Type I, Type II and Type III.

Type I
It is type that we are heading towards. Civilization of type I should be able to use all the available resources on its home planet which means it could fuse hydrogen into helium by nuclear fusion or it could use antimatter-matter anihilation to create enormous amounts of energy and would use sunlight, windpower or waterflow in large scales.

Type II
Type two civilisation would need even more energy which would cause in using all or almost all energy created by closest star (Sun). This “thing” is called Dyson´s sphere because it surrounds star and collects its energy. There are different types of Dyson´s sphere like: ring or swarm which are not that effective.

Type III
It is only extension to Type II because that civilisation would be able to use the energy of whole galaxy or multiple galaxies by Dyson´s spheres. Also there are some things like white holes or quasars which would also create a lot of energy so this type of civilisation could use them.

There is also extension for IV and V type.
4th would use whole universe while 5th would be able to use energy from multiple universes.