However, I thought we can to the agreement that... % = time ( !%! = TC time unit ) @ = length ( !@! = TC length unit ) and $ = speed ( !%! = TC speed unit ) Then the line G*P11$11P*G translates as the speed of light is a very large speed. I suggest you review the finding from the 4th message, but I'm pretty sure that the above symbols have the indicated meaning.