The thought is to double the bet soon after every loss, so when a win comes, it covers all earlier losses. https://zt.com.au/ext/aHR0cHM6Ly92aWlvcC5uZXQvJUVDJTk4JUE4JUVCJTlEJUJDJUVDJTlEJUI4JUVDJUI5JUI0JUVDJUE3JTgwJUVCJTg1JUI4JUVDJTk3JTkwLSVFQiU4QyU4MCVFRCU5NSU5Qy0lRUIlQUElQTglRUIlOTMlQTAtJUVBJUIyJTgzLw/itblmid/666/