What I mean is, take the uniformitarian approach to planetary orbits (at least the ones we currently know about). Trace their orbit backwards, assuming the orbits have been consistent for the past, oh, who-cares-how-many years-days-hours-minutes-newyorkminutes-seconds-nanoseconds, and see if there is any point at which they are all perfectly aligned. Just out of curioisty, how far back in time would that be?
Honestly, I am still puzzled. Aligned to what? Each other? Why do they ever need to be perfectly aligned?