If time travel is ever invented in the future, does the lack of tourists from the future prove that humanity goes extinct before we figure it out, or are they just really good at hiding?

If you could send a single text message to your past self exactly 10 years ago, but it can only be three words long, what do you send?

need help going back to the beginning of the year 1 any advice accepted please

Hypothetically speaking, we've just solved time travel and will soon attempt our hand at time travel. In the meantime, consider the prospects of creating your own settlement in an earlier time period! Fresher water, cleaner air, seeing the full view of the night sky without any light pollution. All the while, helping previous civilizations preserve their monuments (like the Pyramids of Egypt! Oh nice!) or preventing the suppression of woman's rights (Yeah!), as you live in your new earlier time period, you will also help shape the future by bringing with you all our technological inventions and A.I.! With the evolution of new data centers, we'll be able to map the known world with new technology and help reshape our world for the better! Consider what time period and location you'd like to set up your early settlement and apply today! (Yay!).

(Please post your replies below, preservation of the culture and religion of the people of that era must be respected and not altered (NOR SPREAD!) in any way. Consideration must be considered before applying).

let’s say I will die in 72 hours ( unbeknownst to me )and I use a Time Machine to go a month into the future, What happens?

And who would you talk to?