False, tachyons are not recognized by the scientific field as being faster than the speed of light. Tachyons are understood as signifying an instability of the system and dismissed through
tachyon condensation, rather than being treated as real
faster-than-light particles, and such instabilities are described by
tachyonic fields. Tachyonic fields have appeared theoretically in a variety of contexts, such as the
bosonic string theory. According to the contemporary and widely accepted understanding of the concept of a particle, tachyon particles are too unstable to be treated as existent.
[4] According to that theory, faster than light information transmission and causality violation with tachyons are impossible.