In theory, traveling forward in time only requires a device which can do this
What is traveling at/near the speed of light?
Because the Earth is round, only this part of a boat can be seen when it is near the horizon
What is the top?
In an average year, there are approximately this many shark attacks on humans
What is 100?
This is the official name of the site often called "Area 51"
This equation, named after its creator, attempts to estimate the number of advanced civilizations found in the Milky Way galaxy
What is the Drake equation?
This warps spacetime, changing the flow of time near massive objects like black holes
What is gravity?
Because the Earth is round, the star Polaris can only be seen from here
What is the northern hemisphere?
On average, around this percentage of shark attacks are fatal
What is 10%?
Area 51 was established by the CIA to develop and test this secret spyplane
What is the U-2?
This is the name given to contradiction between the high probability of alien life existing, and humans having yet to discover it?
What is the Fermi Paradox?
This is a hypothetical object which could connect two distant points in space
What is a wormhole?
Because the Earth is round, its shadow (seen during a lunar eclipse) is always this
What is round or circular?
When a shark does attack a human, even fatally, it very rarely does this
What is eat them?
This is the amount of credible scientific evidence evidence ever produced that aliens can be found at Area 51
What is none/zero?
What is the "Great Silence"?
This is the name given to the apparent impossibility of going back in time to kill your own grandparent
What is the Grandfather Paradox?
Because the earth is round, humans created these to adjust for the Sun being in different places at different times
What are time zones?
This type of shark is responsible for around 35% of attacks and 40% of fatalities
What is the (Great) White shark?
This is the number people confirmed to have been killed when trying to enter Area 51
What is zero?
This is the name given to the idea that a specific step in the progress of a civilization might be very difficult to pass
What is a "Great Filter"?
In order to travel backwards in time, one would have to do this
What is travel faster than the speed of light?
Because the Earth is round, airplanes follow these paths which look like curves when drawn on a flat map
What are Great Circles?
Shark attacks are most common in this type of location
What is near the coast?
This is the most believable and evidence-based explanation for unidentified aerial phenomena (UAPs) at Area 51
What is it is a top secret military airbase?
True or false: most scientists believe intelligent alien life exists outside of the Earth
True