Board Thread:Versus Debates/@comment-43403813-20200102180859/@comment-32685487-20200104211307

Nagato is a master sensor, able to not only sense others from kilometers away but also able to at all times prevent others from sensing his own location. He can also use the Rain Tiger at Will Technique for extra sensory ability. Like others have pointed out Nagato would know instantly when Obito disappears and re-appears. Obito catching him in Kamui is extremely unlikely.