Just because you want to reach a goal by 2005 doesn't necessarily mean you're going to reach it

Ah - I did fail to express my meaning

Assume you are 28 years old (why not?!) and you have your list of Goals by 2005. Included in those goals is "Get a suss on life as a 30-something". That's not a goal that's meaningful for you to have now but it is a meaningful goal for you to adopt by 2005.

"Goals to achieve by 2005"
means something different to
"Goals to adopt by 2005"

- and which of those two does "Goals by 2005" mean?

Please tell me you understand what I'm trying to get across here!