User blog comment:Purnurnurnz/BFDI IS BACK... WARDS!/@comment-27026386-20160903085030/@comment-27026386-20160904001504

"Long lost", BFDI was created in 2010, but was also born in a comic strip version of BFDI (2008). That basically means that GB is 8 years old, but including the Yoyle coincidence, I'm not so sure…

Shouldn't GB actually remember Yoyle City? Either way, GB would refuse to sent foot onto Yoyle City, so nonetheless it may just be a hallucination or just thoughts.

I can say GB's BFDI Tips and Tricks book indicated that it was created for over a thousand years, that could possibly mean GB is over a thousand and eight years old. Though it could just be Pencil's exaggeration.