The statement makes no sense. If difficulty stabilises then it still requires between 30 and 51% to carry out an attack. Adding that to the network causes the d

The statement makes no sense. If difficulty stabilises then it still requires between 30 and 51% to carry out an attack. Adding that to the network causes the difficulty to increase so you need more computing power to get your 30%. If we assume the bad actor already has that computing power then they could do it now or alternatively they are sitting on unused bitcoin hashing power which is becoming less useful everyday.