the following possibilities are imaginable: 1) the increased inertia at higher speeds - corresponding to greater inertial mass - is caused by a 'friction force', arising from collisions with unitons in the cosmic uniton medium, or 2) a particle in motion increases its mass by collecting more and more unitons from the cosmic uniton medium, or 3) it can be 1) and 2) combined.
Can you repeat this sentence, but capitalize it correctly?
The following possibilities are imaginable: 1) the increased inertia at higher speeds - corresponding to greater inertial mass - is caused by a 'friction force', arising from collisions with unitons in the cosmic uniton medium, or 2) a particle in motion increases its mass by collecting more and more unitons from the cosmic uniton medium, or 3) it can be 1) and 2) combined.