It is very possible. Do you know the number of segments? The total number of days in a Baktun is 144,000, and it is divided into several other numbers. We commonly refer to a year as 365 days, and the Baktun is 394 1/4 years, within 3 days of exact, where the end of a Baktun occurs precisely on a solstice or an equinox. It has about the same precision as the Julian Calendar, and was probably devised 3 or 4,000 years earlier, ie before Noah's flood.