I dunno. Looking at the 'up-armoured' tanks in some articles, it's clear they have no real idea how slat or spaced armour [0] is actually supposed to work, and

I dunno. Looking at the 'up-armoured' tanks in some articles, it's clear they have no real idea how slat or spaced armour [0] is actually supposed to work, and are just cargo-culting the improvements based on news broadcast images of US or coalition vehicles i.e. they are welding rebar with the same pattern of bars as MRAPs, but directly onto the underlying armour plates, giving no protection against shaped charge HEAT or RPG rounds...! 0. https://en.wikipedia.org/wiki/Slat_armor https://en.wikipedia.org/wiki/Slat_armor and https://en.wikipedia.org/wiki/Spaced_armor https://en.wikipedia.org/wiki/Spaced_armor