Inspired by statistical thermodynamics, Coverless Duvet we presume that neuron system has equilibrium condition with respect to neural firing.We show that, even with dynamically changeable neural connections, it is inevitable for neural firing to evolve to equilibrium.To study the dynamics between neural firing and neural connections, we propose Cake Stand an extended communication system where noisy channel has the tendency towards fixed point, implying that neural connections are always attracted into fixed points such that equilibrium can be reached.The extended communication system and its mathematics could be useful back in thermodynamics.