[spinarrets]

When I am in hill climbing gear, I turn more revolutions on my pedals than the tires turn. The higher that ration (pedal turns:wheel turns) the 'easier' it is to pedal, but the more turns you need to go forwards.

A bike that is a 1:1 'fixie' would indeed struggle with hills like the OP suggests. However, this bike has a secret hub within the wheel that does gearing, so you have (iirc) 3 ratios you can use to get up to speed or climb hills.