[Old Professer]

The only way that this can work in practice is for the "rider" to expend as much energy "rocking" the device as it would require to walk or run the same distance while the mini-battery supplies the power to balance this silly, wheeled "pogo stick"; I hope the people who have committed to purchase this have the good sense to demand guarantees of performance.

[Harp]

The only way that this can work in practice is for the "rider" to expend as much energy "rocking" the device as it would require to walk or run the same distance while the mini-battery supplies the power to balance this silly, wheeled "pogo stick"; I hope the people who have committed to purchase this have the good sense to demand guarantees of performance.

It's like when you get a wheelbarrow tilted up just high enough and it takes off on its own. The genius of the device is that is able to correct for all tilting that goes too far one way or another.

This is the real thing. It's impact is significant in the short term and it's just going to get bigger. If people can't see that, they're blind.

[Zon]

The only way that this can work in practice is for the "rider" to expend as much energy "rocking" the device as it would require to walk or run the same distance while the mini-battery supplies the power to balance this silly, wheeled "pogo stick"; I hope the people who have committed to purchase this have the good sense to demand guarantees of performance.

So the Old Professer is into the new school of spouting off about things which he was too lazy or thought too beneath himself to research. :)  Electric motors move the Segway, not rocking. I realize that neither of my explanations may be right as to why you got it wrong. So I'll let you tell us why you got it wrong.