No, but memories alone won't build high technology. You need textbooks. And if the textbooks are stored in actual books, you can read it even if you've regressed to TL 0. If they're stored on vinyl, you can read them as soon as your mechanical skills are up to making a phonograph. If they're stored on a primitive electronic medium, you need a slightly higher TL, on CDs a bit higher, etc. And if they're stored on TL 12 holocrytals with TL 15 encryption schemes, you'll need to claw your way back up to TL 14 before you can get a peek at your instruction manuals. This was one of the two reasons we chose to go with TL 9 societies (the second was that a TL 9 society would be less vulnerable to Virus and thus not fall as far in tech capabilities in the first place).
It'd give an advantage in that there'd be production machinery to reverse-engineer and restore. A world without a shipyard would be handicapped. But any world with a good knowledge repository (library, university, etc.) would have a chance.
Hans