Kinetic Energy and Velocity Dispersion of the Local Cloud Complex

The space within fifteen parsecs of the Sun is not one cloud but a complex of about fifteen warm clouds, each with its own velocity vector, all embedded in the Local Bubble. Giving each cloud the size and density of the cloud that surrounds the Sun yields a total complex mass near 5.2 solar masses, and with the published spread of cloud velocities the complex carries kinetic energy near 3.32e+45 erg in its relative motions. Its crossing time, about 3.7 million years, is shorter than the age of the bubble, so the complex should have mixed and dispersed unless it is younger than the bubble or continuously confined, a timing result that supports an origin for the clouds in the bubble's shell within the last few million years. All values are computed from stated published inputs with the deposited script.