I disagree with you about zero military applications. Imagine a backpack that can engage thrusters to significantly reduce it's weight for a few minutes. There

I disagree with you about zero military applications. Imagine a backpack that can engage thrusters to significantly reduce it's weight for a few minutes. There is a significant difference to sprinting with 20 versus 120 pounds on your back. Details are, as always, in execution. There are a host of reliability, safety, and economic challenges to work out before this could get anywhere.