I've worn aids for about 50 years and in my case that has kept me from becoming totally deaf a lot earlier than it has. It also has helped me immensely when I got the CI. The old adage is true in my opinion " use it or loose it" My comprehension was under 30% and that was stretching it. More like 18 to 20%. My CI has brought me way up and I realize I may not be the average and while I don't think exceptional, I'm over 98% in the controlled environment and while I can't say for sure, I know I'm way better in crowds and other noisy areas than I was. I can now understand most but not all video clips on the computer where before I could not get one in a hundred. At about the 75 DB level I can watch TV so as far as I'm concerned we have made some large advancements. I know I have a ways to go but I'm very happy at where I am now. I can now get back in my little aircraft and hear others on the radio and feel much safer flying . I had all but given up flying due to not being able to hear. Still don't do much as its gotten too darn expensive and I'm on a fixed income. As an aside to the original " I think " Helen Keller, who was both blind and deaf, said that when one is blind, they miss out on places, but, it they are deaf, they miss out on people. It's all about people and communication and anything that can help communication between others is a bit plus.