I'm pretty sure that's a typo.  It's gotta be +100°C to -90°C at least.  I mean, my skin is designed to protect me above 100°F. 
  
As for Jeremiah Weed, he's just a troll with no imagination or dream of science.  John Atanasoff invented the first digital computer (at Iowa State University I might add) in the 1930s.  Since then we've gone to the moon. By Jerry Weed's logic, we shouldn't continue to press the limits and find better ways of doing computing.  I bet he likes his smart phone though.  Either way, what the hell does it matter to Weed?  It's not costing him any money and if the dude makes a 10 foot deep hole in the ground, it's not Weed that dies.  Stop feeding the troll.