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People and pathogen, on the go
Popula is 100% ad-free, reader-supported journalism accountable only to you. Every dollar of your subscription goes straight to our work. Thank you for supporting Popula.
Hmm, looks like you don’t have MetaMask activated!
If you know what MetaMask is and have it installed, activate MetaMask and refresh:
If that doesn’t make sense to you, click here:
The MetaMask window will pop up and ask if you want Popula to connect to your MetaMask. Check the account you want to connect and click the ‘Next’ button.
Don’t see the MetaMask window? It might have popped up behind this window… Take a look and see if it’s hiding somewhere!
If you don’t see the MetaMask plugin popup, you may need to click the MetaMask icon in your browser toolbar (looks like this: 
) and enter your password to unlock MetaMask.
You have an old version of the MetaMask extension installed. Before we can continue, you must install the latest version.
Here’s how:
We know this step is inconvenient, but it’s necessary to make sure this all goes smoothly!
Your MetaMask extension is running, but for privacy purposes you have to allow us to connect to your MetaMask wallet.
You can’t conduct a transaction where the source and destination wallet are the same. Sorry! Maybe you need to switch wallets in MetaMask first?
You need to connect to the Main Net before you can continue. Click on your MetaMask icon so the window pops up, then select ‘Main Ethereum Network’ from the dropdown.
Your MetaMask window will pop up in a few seconds, and you need to confirm the transaction in order for your payment to go through.
Hit that ‘CONFIRM’ button to make it happen!
Your comment was rejected! Here’s what the computer had to say:
You can try again if you want:
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Did you reject the transaction by accident? Click here:
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Maybe you’re not quite comfortable with this yet?
That transaction didn’t go through for some reason.
Try clicking on the MetaMask button in your browser bar (looks like this: ) and see if you have any transactions listed at the bottom of the popup. If you don’t see one for the comment you just tried to post, then try again:
Or just want to ask us about it? We’ll look into it personally for you.
Comment posted successfully! Refresh the page to see the comment you just made. You’ll also receive an email notification of your transaction.
To see your transaction logged in MetaMask, click the MetaMask button in your browser toolbar—this one: —and your transaction will be listed in the popup.
You can also track the transaction on the Etherscan website. It usually takes under a minute to process, and you’ll get a notification from MetaMask when it’s done.
Track on Etherscan
If you have any questions at all, please let us know!
How much do you want to tip?
You can adjust either amount to see how much ETH or USD you’ll be sending.
You can adjust the tip amount in the MetaMask popup window before confirming the transaction.
Participation in the Popula comment tipping system is optional.
Did you reject the transaction by accident? Want to adjust your tip amount? Click here:
Maybe you’re not quite comfortable with this yet?
That transaction didn’t go through for some reason.
Try clicking on the MetaMask button in your browser bar (looks like this: ) and see if you have any transactions listed at the bottom of the popup. If you don’t see the tip you just tried to leave, then try again:
Or just want to ask us about it? We’ll look into it personally for you.
Your comment tip has been processed! Thank you so much. The comment author will appreciate it a lot, and so do all of us at Popula.
Want a receipt? (We won’t store your email address.)
To see your transaction logged in MetaMask, click the MetaMask button in your browser toolbar—this one: —and your transaction will be listed in the popup.
You can also track the transaction on the Etherscan website. It usually takes under a minute to process, and you’ll get a notification from MetaMask when it’s done.
Track on Etherscan
If you have any questions at all, please let us know!
In order to receive tips on your comments, you must have a wallet address saved. Enter your wallet address below and click ‘Save.’
Or, you can:
If don’t want to accept tips, clear the address and hit ‘Save.’
We’ve automatically filled in the wallet address that you’re currently using in MetaMask. If you just have that one wallet, leave it as is and click ‘Save.’
0x and be 42 characters long.Questions? Problems?
We know this cryptocurrency stuff is new and weird. We’re here to help you understand. Ask us anything!
hey@popula.com
ETH is Ether, a popular cryptocurrency generated on the Ethereum blockchain.
You’ll need some Ethereum cryptocurrency (ETH) in a MetaMask wallet in order to continue. Currently it’s not possible to use other cryptocurrencies, or in dollars or other fiat currencies.
For a comprehensive FAQ to help get you started, please visit our FAQ page.
If you have any questions at all, please let us know!
Hmm, looks like you don’t have MetaMask activated!
If you know what MetaMask is and have it installed, activate MetaMask and refresh:
If that doesn’t make sense to you, click here:
The MetaMask window will pop up and ask if you want Popula to connect to your MetaMask. Check the account you want to connect and click the ‘Next’ button.
Don’t see the MetaMask window? It might have popped up behind this window… Take a look and see if it’s hiding somewhere!
If you don’t see the MetaMask plugin popup, you may need to click the MetaMask icon in your browser toolbar (looks like this: 
) and enter your password to unlock MetaMask.
You have an old version of the MetaMask extension installed. Before we can continue, you must install the latest version.
Here’s how:
We know this step is inconvenient, but it’s necessary to make sure this all goes smoothly!
Your MetaMask extension is running, but for privacy purposes you have to allow us to connect to your MetaMask wallet.
You need to connect to the Main Net before you can continue. Click on your MetaMask icon so the window pops up, then select ‘Main Ethereum Network’ from the dropdown.
How much do you want to tip?
You can adjust either amount to see how much ETH or USD you’ll be sending.
You can adjust the tip amount in the MetaMask popup window before confirming the transaction.
Author participation in the Popula tipping system is optional; if an author declines to participate in the tipping system, your tip will be refunded to you in full within 60 days.
Your MetaMask window has popped up now, and you need to confirm the transaction.
Hit that ‘CONFIRM’ button to make it happen!
Did you reject the transaction by accident? Want to adjust your tip amount? Click here:
Maybe you’re not quite comfortable with this yet?
That transaction didn’t go through for some reason.
Try clicking on the MetaMask button in your browser bar (looks like this: ) and see if you have any transactions listed at the bottom of the popup. If you don’t see the tip you just tried to leave, then try again:
Or just want to ask us about it? We’ll look into it personally for you.
Thank you so much for your tip, and for your direct support of journalism. The author will appreciate it a lot, and so do all of us at Popula.
Want a receipt?
To see your transaction logged in MetaMask, click the MetaMask button in your browser toolbar—this one: —and your transaction will be listed in the popup.
You can also track the transaction on the Etherscan website. It usually takes under a minute to process, and you’ll get a notification from MetaMask when it’s done.
Track on Etherscan
If you have any questions at all, please let us know!
Home to Popula, please!
Questions? Problems?
We know this cryptocurrency stuff is new and weird. We’re here to help you understand. Ask us anything!
hey@popula.com
ETH is Ether, a popular cryptocurrency generated on the Ethereum blockchain.
You’ll need some Ethereum cryptocurrency (ETH) in a MetaMask wallet in order to continue. Currently it’s not possible to use other cryptocurrencies, or in dollars or other fiat currencies.
For a comprehensive FAQ to help get you started, please visit our help page, “How to Tip Your Favorite Authors with Cryptocurrency on Popula!”
If you have any questions at all, please let us know!
Each comment or response costs a tiny ETH fee of 1.0E-5 (about 5¢ in Ethereum cryptocurrency), payable from your Metamask.io wallet (the wallet is free, and takes just a moment to add to your browser). This system helps protect Popula conversations from trolls, fakers, Cambridges Analytica and other malign influences.
If you haven’t got any ETH yet and you’re a Popula subscriber, please write to hey@popula.com with your subscriber email address and MetaMask wallet address, and we’ll send you a little bit to get started! It’s pretty easy and a lot of fun to use, Yay.
If you’d like to learn more about cryptocurrency, Ethereum, and how Popula is using these new technologies to help protect speech rights and the free press, please visit our FAQ page.
We’re having trouble checking your subscriber status. Try refreshing the page.
Welcome! To leave a comment, you’ll need to log in, and also have your MetaMask wallet ready with some ETH cryptocurrency available.
It’s easy! Just visit metamask.io to install an in-browser MetaMask wallet. If you’re a new subscriber, write to hey@popula.com for $2 in free ETH crypto!
Thank you for being a Popula subscriber! As a subscriber, you may leave comments, but you have to be logged in as commenter here first. This is an additional login—the login for your commenting privileges—and you’ll stay logged in after you log in the first time.
We’ve sent an email to your registered address at … with your commenting details. Please follow the directions in the email to open your commenting privileges and then come back here to leave your first comment!
Thanks for registering! Please log in and you can get started commenting.
You need to connect to the Main Ethereum Network before you can leave a comment. Click on your MetaMask icon so the window pops up, then select ‘Main Ethereum Network’ from the network-chooser dropdown at the top.
You’re logged in and ready to leave comments! All you need is a MetaMask wallet and a little ETH cryptocurrency, just like with our microtipping system.
If you know what MetaMask is and have it installed, activate MetaMask and refresh:
Each comment costs 5¢ in Ethereum cryptocurrency to post! Just write your comment and click the green button. Thank you, Popula subscriber, for joining us in the new world of cryptoeconomics! Please don’t forget to set your wallet address in order to receive tips on your comments.
Alas! commenting is not yet available on your mobile device. Each comment costs a little ETH cryptocurrency to post, and for now that requires a regular computer.
So please go to your laptop, install the MetaMask browser plugin, and hold forth!