Why the autoregressive connections do not cause problems
		• The autoregressive connections do not mess up contrastive divergence learning because: – We know the initial state of the visible units, so we know the initial effect of the autoregressive connections. – It is not necessary for the reconstructions to be at equilibrium with the hidden units. – The important thing for contrastive divergence  is to ensure the hiddens are in equilibrium with the visibles whenever statistics are measured.