user81527: I saw the video below that shows the possibility of a shift in Channel Balances. It shows that the amount that one uses to fund a channel may "disappear" if the channel is used as part of a route to fulfill the payment for someone else.
Someone Else --> Me --> Store
https://youtu.be/pOZaLbUUZUs?t=2m18s
It this scenario:

-> I get ready to go to the store
-> I establish a payment channel between myself and the store and add $100 USD to it
-> Someone else uses my channel (i.e. me) as part of their payment routing - a go-between - to pay the same store (since they don't have
a direct channel to the store).
-> My direct channel to the store is now empty of funds.

How does one come about this problem?
TIA

user5292: It's actually a non problem deliberately set up in this video as a strawman. Professionally produced FUD.
In practice you're very unlikely to have a direct channel with the specific store in the first place, since for privacy reasons you actually want to be separated from that store at least 3 hops. But in either case you'd simply route your payment in the other direction through a different route towards that store. That's the whole point of this thing being a network. Payments can flow in both directions and the network is full of cycles.

81527: <p>I saw the video below that shows the possibility of a shift in Channel Balances. It shows that the amount that one uses to fund a channel may "disappear" if the channel is used as part of a route to fulfill the payment for someone else.</p>

<p>Someone Else --> Me --> Store</p>

<p><a href="https://youtu.be/pOZaLbUUZUs?t=2m18s" rel="nofollow noreferrer">https://youtu.be/pOZaLbUUZUs?t=2m18s</a></p>

<p>It this scenario:</p>

<ul>
<li>-> I get ready to go to the store</li>
<li>-> I establish a payment channel between myself and the store and add $100 USD to it</li>
<li>-> Someone else uses my channel (i.e. me) as part of their payment routing - a go-between - to pay the same store (since they don't have
a direct channel to the store).</li>
<li>-> My direct channel to the store is now empty of funds.</li>
</ul>

<p>How does one come about this problem?</p>

<p>TIA</p>
 5292: <p>It's actually a non problem deliberately set up in this video as a strawman. Professionally produced FUD.</p>

<p>In practice you're very unlikely to have a direct channel with the specific store in the first place, since for privacy reasons you actually <em>want</em> to be separated from that store at least 3 hops. But in either case you'd simply route your payment in the other direction through a different route towards that store. That's the whole point of this thing being a <em>network</em>. Payments can flow in both directions and the network is full of cycles.</p>
