You may look more than a bit odd if you go to the past and someone notices the phone you forgot to remove from your jean pocket. Or you start making predictions like Nostradamus that are all accurate.

I think you have the advantage there. Japan's language and culture has been preserved better than many other civilizations.

Ya, that's why I worded it that way. I wouldn't survive a week landing in midwest North America in 1523. Assuming civilization somehow continues for 500 more years, you would attract much less attention in scenario 2.

They will also likely speak way different in 500 years than we do now. We have an idea what 1523 English sounded like. 2523 is uncharted territory.

HP reached its pinnacle in 1993 with the 4L laser printer. They were practically indestructible. I bought one and it took 15 years of heavy use to kill it.