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So there's some interesting ideas here, but I suspect efficiency of the drive system is horrendous (it's still going to be able to climb better than the Mando Footloose, though), and it feels like it's trying to be a scooter more than an #ebike: https://newatlas.com/electrom-velomobile/52486/
However, if this low-speed parallel/high-speed serial system works better than the NuVinci hub, which I think it *could* with high efficiency motors and inverters, it'd be worth it.
(I still think a power split architecture would be better, though...)