It wasn't necessarily that, so much as Senku wasn't really thinking about who he was speaking to and more likely, that they were unaware of the entire thing. He had a habit of his mind running all over the place sometimes, so trivial facts like that didn't seem important.

"Yeah, when I was sixteen all of humanity was petrified in June and remained that way for over 3700 years. I was petrified for 117,354,893,870 seconds exactly." Senku again quoted this as though it was unremarkable. "How I broke free is a bit of an interesting scientific fact! I remained alert and thinking the entire time so I was consuming energy from within the stone, so with that in mind, and a fortunate break that nitric acid was coming into contact with my petrified self, I happened to break free on April 1st, 5738."

"For most people though, it's more like a cold sleep so to mitigate the lack of generated energy, the revival fluid I came up with has alcohol in the mix, making it a much stronger version of the previously sold industrial nital etch, but it works."