 So a long time. Huge. Had passed since then. But some of the advantages seem obvious, right? Especially in the use of boats. The wind will only take you in one direction, right? And only so far. One of the most classic examples was traveling from Europe to the United States. There are westward winds on the Atlantic. So going from the United States to Europe was a much faster trip than going from Europe to the United States. A lot of times they would have to go way out of their way just to try to get, you know, there was no straight line traveling that way. Yeah, exactly right.