Hey mods and everyone who uses the Dr Stone wiki! I have been thinking about this for the while and I think I am right in saying that the current age on the wiki for Senku at the observatory is wrong. This is because we know Senku spent 6 months all alone without Tajiu because he says it took Tajiu 6 months to wake up in the first ep. Senku then spends a full year with Tajiu as we can see from the seasons going full back to the spring, making Senku 16 when he finally gets to the village, with an extra 6 months on that. This would make it so that sometime between that and the Grand Bout he would have had a birthday. Makings the Observatory his 18th birthday which would make sense that they would do something big for his 18th birthday since it’s a milestone and 17 isn’t. I would love to talk more about this if anyone has any other input but I believe the argument for it is very strong.