[grip_daddy]

Type R,

The observer C has a watch to measure his time. Let's say B fired at 00 seconds thus the signal reaches C at 30 seconds. Ten seconds later, at 10 seconds, A fires. Now signal A will reach C at 11 seconds. The difference between receiving A and B becomes 19 seconds, meaning you were right in that observation (thanks for the correction).

So given that C cannot have any other way of knowing that actually B fired first, isn't he wrong in his sense of knowledge that event A happened before event B? Accordingly, he is receiving future events before past events, which would mean that sense of future, present and, past are limited to our five senses of perception?