The savings wallet doesn't earn inflation.

Yeah, the numbers are just spilt 50 50. However, what this would mean is that a speculator can earn on the principle and get the powerdown without risking any of it.

@theycallmedan mentioned a 5% burn for instant PD. That would be 50k steem on 1M.

Doing it this way means that that to pay the same, the 1m would have to be in the cold wallet for 400 days, which is a long time for a speculator and an investor would likely choose more active ways. This way an investor could have say 20% in cold store Earning and available, and 80 active earning more and influencing the community.

It needs more thought of course, but I think creating a cold wallet would be valuable in itself as it can have different security measures applied too. Then build from there.