Now, imagine the exact opposite scenario. Imagine that Obamacare went into effect, and over the next eight years and eight months, the healthcare inflation wasn't just above average, but was so vastly far above average that it blew away the prior record for the most healthcare inflation over a period of that length. Would you be in here saying "No causative effect that I can see." You know perfectly well you wouldn't. In fact, EVERYONE here knows perfectly well you wouldn't. If the post-Obamacare era had set a dramatically higher new record for most healthcare cost increases, rather than a dramatically lower new record for least healthcare cost increases, you'd do the reasonable thing and infer cause and effect. But because it runs contrary to your prejudices, rather than reinforcing them, there's nothing that would cause you to infer causation.