YC: It’s a mistake to use marketing-speak. Marketing denoise applied

I'd suggest the "To improve how people navigate on earth" to still be a poor description. It doesn't use the jargon, but it also doesn't tell anybody about what the thing is/does/how people will use it. It completely lacks emotion and connection to a consumer.

"A map on your phone so you can get directions no matter where you are"

"A better location system so you can find the place you're looking for without having to look at or read directions"

I'd suggest "to improve" is not a goal, your description needs to be more concrete, yet flexible enough that you aren't limiting other peoples imaginative use of your product.

Y Combinator. How to apply successfully guideline. It’s a mistake to use marketing-speak to make your idea sound more exciting.