TechnologyBook Club: Read an extract from Every Version of You by Grace Chan In this passage from the opening of Grace Chan’s sci-fi novel, the November read for the 51¶¯Âþ Book Club, we are introduced to her protagonists as they spend time in a virtual utopia which is becoming increasingly tempting in a dying world Culture
SpaceIs the universe really one big black hole? According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could the whole cosmos be a black hole? Comment