The Earth is spinning around it's axis, while spinning around the sun. 5 minutes ago, you weren't just in another time, but in another place.
Even if you could calculate exactly where to be, you then have to instantaneously transport yourself there at exactly the right moment.
Not to mention, what if you were on the fourth floor of a building that didn't exist in the time you traveled to? Any excavation on the site could leave you high above the ground or buried underneath it, or you could end up inside a brick wall. How do you realistically figure out exactly where to materialize in the past?
You'd realistically have to use at least an aircraft if not a spacecraft and transport the whole shebang into the past with you inside somewhere safe and then travel to the place you want to be.
Here's my problem with time travel.
The Earth is spinning around it's axis, while spinning around the sun. 5 minutes ago, you weren't just in another time, but in another place.
Even if you could calculate exactly where to be, you then have to instantaneously transport yourself there at exactly the right moment.
Not to mention, what if you were on the fourth floor of a building that didn't exist in the time you traveled to? Any excavation on the site could leave you high above the ground or buried underneath it, or you could end up inside a brick wall. How do you realistically figure out exactly where to materialize in the past?
You'd realistically have to use at least an aircraft if not a spacecraft and transport the whole shebang into the past with you inside somewhere safe and then travel to the place you want to be.