How do you explain the Meissner effect? I believe it is wrong to explain the Meissner effect as the induction of currents which perfectly oppose the relative motion of the magnet (Lenz's Law) thereby excluding any magnetic flux within the superconductor in superconducting state. This is wrong because you can place a magnet on top of a cooling superconductor, and it will begin to levitate once the superconductor is below critical temperature i.e. it levitates without experiencing a rate of change in flux. So what does the HSC want? To take the Meissner effect as some magical phenomenon?