Michigan: "ACA Medicaid Expansion begins to learn at a geometric rate. It becomes self-aware at 2:14 a.m..."

Yup, Michigan's ACA Medicaid expansion is still continuing to grow, although it does seem to be slowing down at last:

Healthy Michigan Plan Enrollment Statistics

Beneficiaries with Healthy Michigan Plan Coverage: 579,115
(Includes beneficiaries enrolled in health plans and beneficiaries not required to enroll in a health plan.)

*Statistics as of March 9, 2015 
*Updated every Monday at 3 p.m.

Again, for the record, the prior estimates of how many Michiganders are even eligible for the program ranged from 477K - 500K. We're 16 - 21% above that now.