3 ms·

"First" does not equal to "cause" either.

• luckylion 7y ago
  Second rules out cause though. If you have A=>B and B=>A as possibilities, and you can rule one of them out with a very simple question, that's a good way to start. If computers came after electricity, they didn't cause electricity. That says nothing about the possibility of electricity causing computers, but it brings us forward nonetheless.
• jjk166 7y ago
  First doesn't necessarily cause second, but second almost certainly doesn't cause first.