I like learning the engineering level, but logic alone will lead you to conclude that digital will always introduce loss, unless and until science is able to measure, deconstruct and reconstruct EVERY characteristic that causes us to experience (not just hear) music. There's clearly more to the analog content than the waveform, let alone the density of its deconstruction and the precision of its reconstruction. If this weren't true then the makers of the better audio equipment wouldn't all use listening tests as a primary driver in design choices.
