Revelation 6 begins the explanation of the seven seal judgments. The First Seal (Revelation 6:1-2) reveals the Antichrist in disguise. He is portrayed as a rider on a white horse, meaning he is impersonating our savior, Jesus. In the Second Seal (Revelation 6:3-4) the Antichrist begins to reveal his true nature as a fiery red horse is revealed. With the Third Seal, the horse changes to black, indicating the wars and killing are set to begin. However, only when the Fourth Seal is opened does life on the earth becomes truly disastrous.
When he opened the fourth seal, I heard the voice of the fourth living creature say, “Come!” 8 And I looked, and behold, a pale horse! And its rider's name was Death, and Hades followed him. And they were given authority over a fourth of the earth, to kill with sword and with famine and with pestilence and by wild beasts of the earth. Revelation 6:7-8 ESV (emphasis added)
Over one-fourth of the population of the earth is killed. That would be more than 1.5 billion people who are killed by the Fourth Seal. How is that even possible?