Picure this
If going near the speed of light you have a penlight on forward can the power of that little light accumulate?
Could cosmic rays actually be records of FTL flight? Dumb idea but if if FTL happens it will require immense amounts of power applied. Perhaps that would explain why they come from all sorts of directions and are not consistent sources.
Just a little extra BS to throw into the mix.
Have fun withe ideas. That';s where the furture comes from