# Some questions about new V3 features

**URL:** https://gov.uniswap.org/t/some-questions-about-new-v3-features/12884
**Category:** Uncategorized
**Created:** [June 8, 2021, 12:54pm UTC](https://gov.uniswap.org/t/some-questions-about-new-v3-features/12884 "2021-06-08T12:54:53Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![jeremyfritzen](https://sea2.discourse-cdn.com/flex016/user_avatar/gov.uniswap.org/jeremyfritzen/32/1695_2.png) [@jeremyfritzen](https://gov.uniswap.org/u/jeremyfritzen)
#### Post date: [June 8, 2021, 12:54pm UTC](https://gov.uniswap.org/t/some-questions-about-new-v3-features/12884/1 "2021-06-08T12:54:53Z")

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Hi!

I’ve been using Uniswap since August 2020 but I’m a little bit lost about new features that come with V3.

I’ve read [this article](https://uniswap.org/blog/uniswap-v3/) and some questions came to my mind:

1. Why do we say that with Uniswap V2, part of the liquidity provides is never put to use.  
The article states:

> In Uniswap v2, liquidity is distributed evenly along an x\*y=k price curve, with assets reserved for all prices between 0 and infinity. For most pools, a majority of this liquidity is never put to use.  
> I don’t understand it because when I put some liquidity, this liquidity is “mixed” with the whole liquidity pool. So I don’t understand why the liquidity **I provided** would be less used than other.  
> I missed something but find understand what.

1. I don’t understand the Capital efficiency comparison between V2 and V3  
The article describes the following example:  
 ![image](https://us1.discourse-cdn.com/flex016/uploads/uniswap1/original/2X/f/f7e068d32051d59ae07607276aa81e34e46b21d4.png)  
I understand the conclusion: with less capital, we are able to earn the same.  
But I don’t understand the diagram. How is the APR calculated? Can someone get a little bit into the details of how you got the figures on this diagram?

Thank you so much for your explanation!