A tank designer who fetishizes main gun autoloaders and cripples the safety of ammunition storage in order to accomplish it.
The diagram towards the bottom of that page shows the arrangement of ammunition and propellant in a T-72, which is also the same in a T-90 and almost the same in a T-80. It’s an unprotected carousel that goes all the way around the turret ring to feed the autoloader and (because of its size and distribution) can’t incorporate blow-out panels to vent ammunition fires. So if the tank is buttoned up, the turret pops into the air like a cork out of a champaign bottle (except no one inside is celebrating any more).
This is the diagram I mean, since Forbes is just copying a Wikipedia diagram. It’s an SVG, though, so it won’t preview here.
https://upload.wikimedia.org/wikipedia/commons/2/28/T72_crew.svg
The ammo and the propellant are the orange and yellow colored cylinders just within the turret ring.
Also, here’s a post by @bump in another Russia-Ukraine War thread that shows the actions of the two types of autoloaders involved.