Every thread about high speed rail seems to have this response to an argument no one is making. NY-LA doesn't make sense, but it is nationally embarrassing not to have the BosWash corridor connected.
I misread the comment as Boston-New York like the route in the article. Boston-New York is slower than the rest of the route. South Station in Boston to Penn Station in New York takes 3:46[1] and those stations are 212 miles apart[2] which is an average of about 55 mph.