I believe that solar storms able to cause widespread havoc on our modern infrastructure are a much more frequent occurance.
The Carrington event in 1859 caused serious damage to telegraphs, for instance.
It's a risk that is more once a century than once a millenium... so we may very possibly see one this century.
Considering how reliant we are on electricity, if everything goes down for more than a couple of days at most there is bound to be extremely serious civil unrest on a global scale: just imagine no access to money and thus not being able to buy food, fuel, etc. and then supply chains shutting down anyway.
The Carrington event in 1859 caused serious damage to telegraphs, for instance.
It's a risk that is more once a century than once a millenium... so we may very possibly see one this century.
Considering how reliant we are on electricity, if everything goes down for more than a couple of days at most there is bound to be extremely serious civil unrest on a global scale: just imagine no access to money and thus not being able to buy food, fuel, etc. and then supply chains shutting down anyway.