I think there have been some very good answers on here that sum up the main point - why does there have to be a point to all of this? If all of this occurred by random chance, then there wouldn't be a greater point or lesson to be learned. And, the evidence, at least on the surface, appears to point to that conclusion. Why are there billions upon billions upon billions of planets that can't support life, but ours does? Why do those planets even exist? Why do roughly 20-30 percent of pregnancies end in miscarriage? Why do 10 million children under the age of 5 die every year? As Sam Harris put it, that is the equivalent of a tsunami the power of the 2004 Indian Ocean tsunami, which killed 250,000 people, occurring every 10 days, killing only children under the age of 5. Is there a point to that? What is the point of tics and fleas? Why are there 500,000 types of beetles? All of these things, on the surface, point heavily to randomness. The theist may explain these things another way - but can the atheist be faulted for taking this type of evidence and saying there can't be a point, it's all random?