c'mon just let me do what im doin u know i just got here
You should learn how things roll here. If you don't, you'll end up splattered on the wall. People like you make me laugh and cry at the same time.
To answer the question, if we did have the technology to mess with a star's nuclear fusion, wouldn't we already be able to effectively traverse other star systems?
Hundreds is overly optimistic. More like thousands of years.