What is the point of investing in a process of learning about the world if there is almost no time to put that information to use?

Once I knew this stage was coming, interacting with these animals, especially the friendly ones, became poignant. Their time was so short. This discovery also made the puzzle of their large brains even more acute. What is the point of building a large nervous system if your life is over in a year or two? The machinery of intelligence is expensive, both to build and to run. The usefulness of learning, which large brains make possible, seems dependent on lifespan. What is the point of investing in a process of learning about the world if there is almost no time to put that information to use?

P. Godfrey-Smith, Other minds: the octopus and the evolution of intelligent life (2017), loc. 1,986

Cephalopods are an island of mental complexity in the sea of invertebrate animals

Cephalopods are an island of mental complexity in the sea of invertebrate animals. Because our most recent common ancestor was so simple and lies so far back, cephalopods are an independent experiment in the evolution of large brains and complex behavior. If we can make contact with cephalopods as sentient beings, it is not because of a shared history, not because of kinship, but because evolution built minds twice over. This is probably the closest we will come to meeting an intelligent alien.

P. Godfrey-Smith, Other minds: the octopus and the evolution of intelligent life (2017), loc. 127