H. P. Lovecraft (1890-1937) had a particularly grim vision of the future. He created a dark, yet sublime fictional universe. What Lovecraft brought to speculative fiction is the concept of world building. He did not only create a myth; he created an entire fictional world to illustrate his cosmological views. This is how he summarized his vision in the introductory paragraph from The Call of Cthulhu (1926):
The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far. The sciences, each straining in its own direction, have hitherto harmed us little; but some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the deadly light into the peace and safety of a new dark age.
What if he was right?