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pages/lessons/projects/1.mdx

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@@ -297,7 +297,7 @@ contract WAGMI {
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<Callout emoji='💡' size='md' variant='info'>
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While private and internal are not readable or modifiable from other contracts, its values are set on a public blockchain, making its values visible from the outside world.
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</Callout>
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#### Which visibility should I use ?
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A simple answer to this is , start with giving every variable a `private` visibility then as you move further in contract developement modify variables to `internal` visibility as a next step of modification. Try to use `public` visibility as little as possible in order to be gas efficient and making less vulnerabilities in the smart contract.
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![Wizard Wooshing on Successful Lesson](/assets/lessons/1/img_10.png)
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Before you go ahead and tell us: **what your future in web3 is,** have a check
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on what you didn’t know a little while ago, and what you know now! *
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on what you didn’t know a little while ago, and what you know now! \*
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Apart from a user wallet, what else uses a blockchain (Ethereum) address?
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What can we use a smart contract for?
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**Now, go to the community in Discord to share your new Open Sourcerer
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powers**......and find the answers too!!!
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powers**......and find the answers too!!!

utils/questions/question-2.json

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utils/questions/question-3.json

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