I do believe you are correct, Mike. I love any black box's abstract paragraph/sentences. Don't know how it works, but the puzzles keep popping up, and makes me wonder how they came up with the formula? That forty nine four forty pings twice. It takes 2 miles for it to learn, say. So 98880 takes those two miles, where a mile is 5280 feet, and then we binary speak something like;
" 528/2 = 264, remainder is 0 "
Where I'm sort of chasing bits vs binary. 264 bits goes to 0 or divided by 2 says it takes at least 2 miles to recalc the speedo. I sort of see mile one goes to 0 with this formula. The second calc is the average of the 'best calc' made when it returns to 0 a second time. In other words, it has so many thousands of calcs that are processing at this side of light speed. E is the pulse so it's got some fast hardware inside.
Bottom line, you are handcuffed to tire pressure, tire growth form centrifugal force, and a continuous sliding scale or wear, making the wheel's circumference smaller. So if you were to plan some mileage per gallon... here is your more accurate option so as to not run of gas because the trip is not calc'd if the speedo is off, right?