You have good reason to fear spiders.
If all these spiders decided people were a food source, homo-sapiens would become extinct in a single year.
Why? Because each spider eats 10% of their body weight each day requiring 400–800 million tons of prey annually.
The total biomass of all humans is 287 million tons. Not enough to satisfy the annual harvest spiders require to keep their present numbers going.
Oh, how many spiders needed to devour a 200-pound adult male? About 2000.
