I was confused as well, but looking at the comments I started looking at the site and it looks like that it is a running gag that happens on every January 1st and I think it started in 2006.
https://explosm.net/comics/newyears-2006
You can just update the URL with each year.
Edit: looks like starting 2023 it is new-years instead of newyears
As musk commented, you don’t have to worry about those fires as cyber truck will direct them upwards.