Fans of billionaire Musk think he is the smartest person in the world. Musk made a dumb comment on his account over the weekend. There is a lot of competition when you remember this is the guy who predicted in March of 2020 that the pandemic would be over by April 2020.
Musk was having a discussion on Sunday about how he hoped to build a Hyperloop, a system of transportation that he first pitched in 2013. Musk assured users that any extreme weather above ground wouldn't have an impact on the tunnels below.
Underground tunnels are impervious to surface weather conditions, so it wouldn't matter to Hyperloop if a storm was raging on the surface. You wouldn't even notice.
The problem is that underground tunnels can flood. We have 11 photos of that happening in recent years, from flooding in subways to water overtaking underground parking garages.