Dean Kamen : To invent is to give

Dean Kamen at TED2002  (transcript)
To invent is to give
Summary
The title is to invent is to give, though, the truth is to invent is to give is difficult but no one knows that whether the inventions have reached someone who really wanted to do and wait for it or not. This is the difficult problem that might be called the last mile is the problem.

I didn't know about the iBOT that was a powered wheelchair developed by the speaker. In the cities, I see many wheelchairs, however, I've never seen the iBOT that will be very useful because this is a wheelchair that you can walk up and down stairs while sitting on without assistance. He told us that technology was great, though, this had another problem that was the transportation.
About transportation, we've solved all the long-range, high-speed, high-volume, and lager-weight problems of moving things around.  However, the fact is that there is the problem of the last mile. It might be an energy problem or a pollution problem or a density population problem.

And then the speaker invented a new way of moving that it can be seen as a pedestrian and the small engine is able to burn any fuel. You don't need to choose buses, taxes, and parking. It solved the energy problem, the pollution problem, and the density population problem, however, no one uses.
The speaker thinks that it must solve the water problem also.
It seems to be called the Segway.

I think that the invention can be used for some problem and for solving a problem, something is invented are different.
People must think that this is the worst problem that a woman has to go to a distant place for water, though, it's just that only she wants to do that. The problem with the solution has a lot of challenges.

Words in this story
context /noun/  circumstances, conditions, factors