Originally Posted by Paul_Moreton:
“i started this for all the plotsl holes mr steven moffat had give as now two things i have discoved is that you are not to crticse.star trek or mr moffat but here we go any way the end of matts 1st season amy wish the doctor into existence yet for around 47 year tv years the dr has been around and that was before amy was born now i sure you have better example and better spelling than me”
I don't think anyone has actually addressed the OP. There are problems with continuity and plots in Who but this isn't one of them.
All of the 47 years of continuity you refer to was wiped out when the TARDIS' explosion caused the cracks which destroyed the Universe. All past history, including the Doctor's past was erased.
The sole remnants of the Universe that were preserved inside the Pandorica device were used to re-create the Universe in a close approximation of what it used to be but, until Amy's memories of the Doctor brought him back, he was not part of that newly recreated Universe.
Amy's recall was the trigger which the Pandorica used to fill in the gaps to complete the picture. It didn't all have to come from Amy's direct experience.
Now, technically speaking, since this isn't the same Universe from before the explosion any continuity errors with respect to events prior to the explosion can be explained away as just differences in how the new Universe was put together!
After Clara and the Great Intelligence jumped into the Doctor's timestream on Trenzalore they again rewrote (first by the GI and then by Clara) many features of the Doctor's history so, once again, we can no longer be sure of the continuity of any of the past events that we watched in Doctor Who episodes over the previous 50 years.
In a way, it's a great get out of jail free card, for anyone worried about continuity and plot holes. Not that there aren't still a few I can think of (and the whole Trenzalore thing has it's fair share in and of itself). Finding plot holes can be fun, though, so I'm not overly bothered by them