A simple yet impossible test

Synesthesia (or synaesthesia British spelling) is a phenomenon in which stimulating one sense or thought automatically triggers another. For example, someone with synesthesia might see colors when they think of numbers, see shapes when they smell certain scents, or taste flavors when they read words. The battery test shown in the video: https://synesthete.ircn.jp/home To take the test you may wish to make an account → skip providing researcher's email → skip personal questions → select grapheme to color or other type of synesthesia → begin test. There is also a demo of the color picker available to play with on the site (not account needed). Wednesday is Indigo Blue book: https://amzn.to/3NjfGN7 Thanks to my editor @BarknoorZ for sharing her experience! Subscribe to my channel to see more videos like this: https://www.youtube.com/user/tibees Support me with a monthly donation on Patreon and receive a gift from me: https://www.patreon.com/Tibees Buy me a coffee (one-off donation): https://ko-fi.com/tibees Website: https://tobyhendy.com TikTok: https://www.tiktok.com/@tibees Twitter: https://twitter.com/TobyHendy Second channel: https://www.youtube.com/channel/UCOZE5llobz3pjPRP69d0Ejg Editing by Noor Hanania