Learning new skill in 20 hours

Watched one TED talk, about how much time needed to learn new skill, many study result said it is average 10000 hours, this possibly true needs this amount time to be professional or expert on some field or skill, but it seems kill most of people who has very tide own time to concerate on some skill.

If you want to jump to new field or skill in shorter time, to do concept proof and build confidence, keep to work 20 hours is possible to looks like a professional even it is still far to a real expert.

Few benefits from this 20 hours approach:
- to seriously start a new skill practice, not just concept from book, for example you can write some basic real programming project, play some instruments, DIY smarthome project
- fully know what is next to learn, for example online resource, top figure website/blog, top books to further reading and practice

If we recall our experience, most of time we gave up before 20 hours; or not focus on one skill learning within 20 hours, we move around many related area.