What Exactly IS Wave?

Wave must have wave carrier. All waves carriers are matter, gas, liquid, and solid matters. It is impossible to find wave in the vacuum space. All waves are co-existing with matter, all waves are matter waving. When a mass is accelerating, its gravity affects the line of sight masses at any distance simultaneously. When a mass's surface atoms are oscillating, its levity (universal repulsion force) affects the line of sight matters' surfaces at any distance simultaneously. Sound is gravity wave, light is levity wave. Both waves are coexisting with the carriers/mediums/air. Both waves are longitudinal wave. If you jump on the floor, it vibrates, produces gravity waves in the building and air. If you knock on the door, it vibrates, produces gravity waves in the door and air. If you wave your big hand, it produces low-frequency gravity waves in the air.

There is no waves existing in space at all.

Scientists lied about gravity wave and light wave traveling in space at light speed. Scammed fund to build LIGO and won Nobel Prize for faking detected gravitational waves from 1.3 billion years ago two black holes merged.