**The Future of Technology: Unscrambling the Possibilities**
- Money can be another obstacle, since not so many people can afford to buy personal robots.
- For example, the latest iPhone hasn't changed a lot compared to the previous model.
- Who knows, maybe in the future we'll have to stop using plastic in our everyday routine.
- It is much more difficult in practice than in theory.
- Worse still, there are still many unproven theories.
