Are External Reasons Impossible?

Decentralised Currencies Are Probably Impossible

Equalitarian Societies are Economically Impossible

The inequality of wealth distribution is a universal phenomenon in civilized nations and it is often imputed to the Matthew effect, that is, the rich get richer and the poor get poorer. Some philosophers unjustified this phenomenon and tried to put the human civilization upon the evenness of wealth. Noticing the facts that 1) the emergence of centralism is the starting point of human civilizati...

ideal quantum coin tossing are impossible.

There had been well known claims of “provably unbreakable” quantum protocols for bit commitment and coin tossing. However, we, and independently Mayers, showed that all proposed quantum bit commitment (and therefore coin tossing) schemes are, in principle, insecure because the sender, Alice, can always cheat successfully by using an EPR-type of attack and delaying her measurements. One might wo...

Why quantum bit commitment and quantum coin tossing are impossible ? ∗

There had been well known claims of “provably unbreakable” quantum protocols for bit commitment and coin tossing. However, we, and independently Mayers, showed that all proposed quantum bit commitment (and coin tossing) schemes are, in principle, insecure because the sender, Alice, can always cheat successfully by using an EPR-type of attack and delaying her measurements. One might wonder if se...

Quantum Convolution and Quantum Correlation Algorithms Are Physically Impossible

The key step in classical convolution and correlation algorithms, the componentwise multiplication of vectors after initial Fourier Transforms, is shown to be physically impossible to do on quantum states. Then this is used to show that computing the convolution or correlation of quantum state coefficients violates quantum mechanics, making convolution and correlation of quantum coefficients ph...