> If there are two os then the battery would drain very badly, right? I don't think this is a viable argument because we have no baselines here. In case phones

> If there are two os then the battery would drain very badly, right? I don't think this is a viable argument because we have no baselines here. In case phones have been running a shadow OS for many years now across the board there just are no phones around to compare battery usages in a meaningful way. "Drain very badly" isn't a figure I can measure when all phones do the same. All the older phones that run through my hands have generally a "bad" battery life cycle; I ascribe that to battery degradation plus technological advancements that have raised the bar.