It is possible that relativity gives identical results to the sum-over-histories approach, with the proper conditions imposed. It further appears to provide an explanation for the cosmological constant, as well. So that's cool.
28 Can an Immovable Rod be carried in a Bag of Holding? aug 13 '13
8 Optimizing 2e High Int, Low Str Fighter aug 10 '13
7 Entering and exiting Athas aug 13 '13
7 Resources for designing aquatic campaigns aug 8 '13
6 Incorporating smell, taste, and weather underwater aug 17 '13
5 Entering and exiting Athas aug 15 '13
4 How can I depict three dimensional combats? aug 17 '13