Vivos will complete construction and commissioning of as many underground shelters as possible within time for the predicted December 21, 2012 date.  While this date is the impetus for completing Vivos, scientists understand that the Earth has had a number of catastrophic, periodic events that repeat on a somewhat predictable, or even random basis, any one of which could occur without notice, whether it occurs in 2012, 2019, 2036, or 100 years thereafter.  Those fortunate enough to secure a position in the first Vivos shelters will be assured of a solution for whenever the need arises. Construction will continue for as long as possible, wherever a critical mass of members are ready, willing and able to support a shelter.