Since it follows that for large enough the conjecture does not hold by the same token as written in the comment here http://www.openproblemgarden.org/op/total_domination_number_of_a_hypercube
False
Since it follows that for large enough the conjecture does not hold by the same token as written in the comment here http://www.openproblemgarden.org/op/total_domination_number_of_a_hypercube