Sort of: I don't think it's meant to restrict time/space usage, just access to capabilities. If you don't give the ad-code access to the network, it'd have no w

Sort of: I don't think it's meant to restrict time/space usage, just access to capabilities. If you don't give the ad-code access to the network, it'd have no way to access the blockchain, but it could still chew up your CPU cycles.