>> So as soon one civilization will pass the filter - it should help others to pass it.... unless neither civilization knows 'when' the great filter is...and c

>> So as soon one civilization will pass the filter - it should help others to pass it.... unless neither civilization knows 'when' the great filter is...and continues to expect it's in the future... this could cause fear of each other... fear leads to the dark side... Interstellar war probably isn't good for the less advanced civilization. Let's hope when the time comes we're not the less advanced civilization...or the other one will become our great filter.. The great filter also could be a predatory civ that snuffs out any sign of life after they find it. For this reason many civs could be afraid to do anything to draw attention.