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In the course of brushing up on my dark energy, https://arxiv.org/abs/astro-ph/0207347, The Cosmological Constant and Dark Energy, I noticed Peebles, et al, raised the possibility of evolving dark energy. Curious, I elected to do some further checking and turned up this rather startling claim; https://arxiv.org/abs/1406.2209, Model independent evidence for dark energy evolution from Baryon Acoustic Oscillations. As seems all too often, I was quite surprised I had not noticed this sooner and was further surprised to learn it has apparently since been corroborated; https://arxiv.org/abs/1503.04923, Is there evidence for dark energy evolution? Just how big a deal is this, or am I just living under a rock?