Can I spend 1 sat in more than one place? 😂😂

You can try... Vlog?

Yes, You can... // MilliSatoshi are the native unit of the Lightning Network. A milli-satoshi // is simply 1/1000th of a satoshi. There are 1000 milli-satoshis in a single // satoshi. Within the network, all HTLC payments are denominated in // milli-satoshis. As milli-satoshis aren't deliverable on the native // blockchain, before settling to broadcasting, the values are rounded down to // the nearest satoshi.

Bitcoin Stack Exchange

What is a millisatoshi? I thought satoshi is the smallest unit?

I encountered 'millisatoshi' (msat) while browsing Lightning Network..., see screenshoot below:
And subsequently I found it mentioned here: &#x...