Our resident technical and psychoacoustic expert and research/industry luminary, @j_j , recently gave a talk at our local chapter of Audio Engineering Society. He calls it Hearing 099. I tried to make it more descriptive and hence what is in the title. It is not very accurate but hopefully it is enough to get your attention.I should tell you in advance that JJ's talk is a mix of very simple and useful information -- some summarized in just one sentence -- and others which will be complex and probably hard to understand for most of you. The simple messages are spread throughout the presentation so please set aside an hour and listen to it. And don't skip the last 5 minutes, whatever you do.The talk will be the start of your understanding of our hearing system and likely something you will come back to often. It will also be a jumping point to learn more using other online resources. It is the best presentation I have seen as the topic is often described at too high level, or way too low.Hopefully JJ will be available to answer questions as he did from the audience.