Unless you really love salt, you want much less salinity in pasta than the sea (1-2% for pasta, 3.5% in the sea). Kenji Alt-Lopez says that you want your pasta

Unless you really love salt, you want much less salinity in pasta than the sea (1-2% for pasta, 3.5% in the sea). Kenji Alt-Lopez says that you want your pasta water "as salty as you remember the sea is", not as salty as the sea actually is because it's way too much!