It's a long term plan, to use to set research policy, budget allocation, and all the other things that people use long term plans for. Putting a date on it's c

It's a long term plan, to use to set research policy, budget allocation, and all the other things that people use long term plans for. Putting a date on it's completion just seems like common sense. If you're dreaming, you say "someday", but if you're a little more ambitious, than you set a date, so you can measure your progress.