A typical sight in Delhi is a small rickshaw piled high with tin cans, being pedalled across town. Now a load that size anywhere else in the world would go by a small truck. But you don't need a truck for this load, because these cans are empty. So this rickshaw represents a very intelligent, efficient use of labour and energy. Then you see a slightly larger rickshaw and it's carrying bags of cement and bricks. This is much more than the rickshaw's been designed to carry, and it's beyond the strength of one person to pedal. Elsewhere, again, it would normally go by truck. But here people have taken the backside of a motor scooter and bolted it on to the rickshaw. And now you have a 100cc engine doing the work of a 2000cc truck. This is frugal innovation in action.
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