There is a scale of words we are using and we are individuals that uncode them differently. Just to take a few. Imagination - maybe - could be - possible - likely - credible - proof - evidence. Other people have other words and even place them differently. When i try things i sometimes start at imagination. And sometimes i try to find evidence first... When i recommend things i like it to be from credible to evidence. Sometimes when reefers have problems i say that they can use "possible" but after discussing it they almost never do. Here i see a variation between credible and evidence as needed in the discussion. Its annoying to see someone calling credible things prooved while others dont use credible as they are trained to only use evidenced facts. Anyway it has been good to read Jose Mayos posts. They have partly taken me back to 2004 when i tried to read all about coral reefs, their biology and chemistry. Apparently we in the reefing scene have been moving a bit away from the wild reef research to a reefing accepted "knowledge" That is of course not bad but we should be aware of it. Our reefs at home are only partly "wild".