When you have to present an idea or a concept that goes against the way people used to do it (until now), it's very important that you make it easy for your audience to understand, accept and apply this new way of doing things. A nice example for this can be seen in a short TED talk by Terry Moore, titled "How to tie your shoes".
If you haven't seen this talk, I'd suggest you watch it before you read on. It's only 3 minutes long and embedded below.
