Estimate.

well we are at 1,670,525 and have 375 days since first post so assuming that it grows at a constant rate so we need 329,475 more to get to 2 mill, at a rate of 4454.73 words a day we need 73.96 more days so assuming he goes at the same rate between 65 - 81 days assuming for an 8 day standard deviation

70 days.

65 days.

About another 155 chapters, and since he's posting about two chapters a day...roughly 75 days.