Sure, but again who doesn't know that historically concepts are not promises, they are ideas that are being considered or even planned at the time of their showing. There is no promise involved just a sharing of current thoughts and imagined plans that could possibly run into a massive number of glitches and changes that have to be made. Full color illustrations that come basically from imagination, usually even before they are engineered are just wishes not promises. Have you ever seen the number of concepts that were shown before they decided on the original EPCOT alone? Our own lives are really a series of concepts that sometimes materialize and sometimes get altered because, a kid needs braces, the car breaks down, layoffs happen, a family member gets sick. We may have had a number of thoughts (concepts) that we really intended to do, but reality don't always cooperate.