Speaking of solid state data retention, the very first flash drive I ever bought was a 512mb Simpletech. It's been sitting in a drawer for god knows how many years. I recently came across it and plugged it in. Yep, data was still there. I opened a few files and everything appeared normal. Given it's a flash drive I would have thought Everything would be gone, I know it's been at least 10 years since it was last plugged into a computer. Don't know if today's flash drives would fair as well but I do believe the tech exists, and has always existed, to make long term solid state storage feasible.