Alternatively, juggle cars. Iron Man did it, why can't I?
~~~
New hypothetical. You find a briefcase on your bed one morning. In it, you find five vials, a million euros, a strange blob of putty, and a note.
The note informs you that you've been chosen to save humanity from an alien invasion. In three years, give or take six months, an alien invasion will begin. The note also elaborates on the nature of the invasion, and it isn't good.
Earth is going to be invaded by a coalition of three alien species, the Argar, Neshaneki, and Sk'karitz, doing their best to destroy humanity in order to claim Earth's resources. The Argar are militant monstrous humanoid aliens, the grunts of the coalition. They never stop growing until they die of their own weight. The largest of them can survive multiple tank shells to the torso before collapsing. The Sk'karitz are the spiderlike scientists and engineers of the coalition, the ones who have invented FTL travel and constructed the coalition's equipment and vessels. When they fight, they typically utilize power armor and drones. The purple catlike Neshaneki are the coalition's leaders and the fewest in number. Only a few dozen Neshaneki are on the mothership aiming to invade Earth, but they make up for it with their psionic powers. Neshaneki have the ability to induce absolute loyalty in anyone they touch, once per 79 hours and 38 minutes, along with brutally strong telekinesis and memory manipulation. The Neshaneki are immune to each others' powers. The writer of the note suspects that the Neshaneki will attempt to subvert Earth's governments while the other parts of the coalition invade.
The note emphasizes that you shouldn't give up hope. While the coalition's mothership is most likely impossible to destroy, the note emphasizes that the coalition is cautious. If you destroy enough of their invasion force, especially the infiltrating Neshaneki, the mothership will retreat. The coalition's tech base is much higher than Earth's, but isn't an insurmountable advantage. In addition, the note describes the vials. The four yellow vials contain an infusion of Sk'karitz brain mixed with various chemicals and bacteria. If injected into the spine, it should increase the technological giftedness of whoever it is injected into to extreme levels. The single purple vial contains an infusion of Neshaneki brain mixed with various chemicals and bacteria. If injected into the spine, it should grant whoever it is injected into the psionic powers of a Neshaneki, starting weak but growing to full strength in a month. The note notes that the vials may possess the side effect of gradually altering the physiology and mentality of the recipient to be more like the physiology and mentality of the donor species, though the writer isn't sure.
The note informs you that it shouldn't be impossible to replicate the vials, but they will require brain matter from the donor species in order to fabricate.
The note informs you that if you'd like to pass the responsibility of uniting and rallying humanity to another, you must simply eat the putty, and you will wake up a day later hungover and lacking your memories of the briefcase and its contents. It supposedly tastes like cinnamon fish brownie pie.
The note is signed, "Mr. E."