Why do you only speak negatively without giving any numbers or statistics and always speak about some random future probability? Who are you to decide if India can afford anything or not? Also, how is it expensive to buy Indian AMCA when the cost is going into India itself as employment creation? Who told you that submarines can replace carriers? Carriers are meant for attack, submarines are meant for defence. Submarines can't bombard an enemy like the carriers can. Submarines can only deny sea access and that too upto limited extent. AEWACS on helicopters and other ASW methods. Who determines what is impractical? Isn't USA having 10 carriers?Isn't China making more carriers? Nuclear carriers don't even need diesel fuel to run.