I don't know much about smark contracts.. How are we as investors going to be able to execute the smart contract to redeem 80% of our capital back?
There are no special skills needed to claim your refund, should you choose to do so. You do not need to have any more understanding of how smart contracts work than you need to know about
car engine mechanics in order to drive a car.

You just need to know how to send Ether and Tokens from your
https://www.myetherwallet.com/ and this you can easily learn on YouTube, or on
https://angelinvestors.io/invest
The refund is a fully automatic process that is built into the Ethereum smart contract, allowing YOU as the investor to "back out" of Angel Token with a minor loss of maximum 20% in the event the price of Angel Token on the exchange does not rise like you expected, or if you are not happy with us as a team and how we are running things, or the investments we are making etc.For whatever reason you would rather get your Ether back you can choose to do so with 80% until March 7th, 2018, and 40% from March 7th until April 26th.
You simply send back the amount of tokens that you want to refund FROM THE SAME ETHEREUM ADDRESS THAT YOU INVESTED IN THE ICO FROM, (so you MUST have control of this address and it can NOT be an address on an exchange). Then within a few seconds your Ether is automatically refunded to your address. So there is no complicated process to go through, (and there is no "approval" needed from us or anything like that).
You as the investor have total control. Partial refunds are also possible. So if for example you are not particularly happy with how things are going in a couple of months, but you would like to remain with 10% of your original investment in the project you can refund part of your tokens if you want.
The only conditions are:1. You must have purchased Angel Tokens during the ICO, and you must have the private key to the wallet you sent your investment from.
We strongly recommend https://www.myetherwallet.com/ but other Ethereum wallets such as
Mist will also work. The refund is ONLY applicable to investors who buy tokens during the ICO. It is not applicable to those only acquire their tokens on an exchange.
2. You can not refund MORE tokens than you purchased during the ICO.So if for example you buy 100,000 tokens during the ICO and then another 100,000 on the exchange a few weeks later when we are listed there, you can ONLY refund a maximum of 100,000 tokens, which was the amount you got through the ICO.
The point is that there is no complicated process or knowledge needed, and YOU as the ICO investor have total control over what you want to do. We think this is the future of ICOs... 