Given that: 1) Four billion years ago Saturn was hotter and radiated strongly in the infra-red.
. . . . . . . . . 2) Like Earth's moon, Titan was then closer to its planet.
. . . . . . . . . 3) Like Earth, Venus and Mars, Titan's atmosphere was then full of greenhouse gases.
. . . . . . . . . 4) Like Earth, Saturn and its satellites were then closer to the sun.
. . . . . . . . . 5) Like Earth, Titan was warmed by tidal forces causing flexion of the lithosphere,
is it feasible that Titan once had seas and lakes of liquid water and Earth-like volcanoes?