¿Who is stronger, Galactus or Muten Roshi?

Galactus is a comic book character created by Marvel Comics and is known to be one of the publisher's most powerful and feared villains. He is a cosmic being who has come to Earth with the goal of consuming planets and becoming the supreme being in the universe. Galactus has a number of supernatural powers, including the ability to manipulate cosmic energy, the ability to control people's minds and behaviour, and the ability to summon cosmic creatures at will. He is also immortal and virtually indestructible, making him a formidable foe for any hero who confronts him.

Muten Roshi, also known as the Turtle Hermit or Master Roshi, is a pivotal character in the "Dragon Ball" series. Born in the year 430, he is renowned as the master of the Turtle School and one of Earth's most formidable martial artists. Throughout the series, Roshi has trained key figures such as Goku, Krillin, and Yamcha, imparting iconic techniques like the Kamehameha. Despite his elderly appearance and often humorous demeanor, he possesses exceptional strength and skills, demonstrated in various tournaments and battles. Beyond his role as a mentor, Roshi has been an active member of the Z Fighters, participating in Earth's defense against numerous threats. His longevity and wisdom make him a respected and beloved figure within the "Dragon Ball" universe.