(oy those spelling mistakes are painful worse than usual, i was on my phone)
Just to flush out the mashal (not marshal) a bit more.
The only way to show you my detergent is any good. Would be to take two SIMILARLY dirty piles of clothing. Group A we wash with detergent+water, group B we wah with just water.
Then we compare the results. If they are similarly dirty then my detergent doesn’t do anything, IF group A is cleaner that would show my detergent works better than water alone.
But just showing that my detergent on its own cleans clothing. Proves nothing! zero nada zilch bupkis * Millions of clothes get cleaned with water, how would you know my detergent changed the outcome.
Please let me know if you dont understand any of this.
Please dont repeat the same mistake again, You’ve said it several times it is irrelevant as explained above
(*It could show that it doesn’t ruin clothing which is all the Sauda Arabia study claimed)