https://www.inverse.com/article/41773-litecoin-tyler-winklevoss-cryptocurrency-bitcoin-billionaire
The technical term that Winklevoss used is “testnet,” which is any alternative bitcoin blockchain designed strictly for testing purposes. A testnet has its own coins, but this cryptocurrency is not supposed to accrue any actual value. Developers can experiment with the testnet without posing any actual risk to the all-important main bitcoin blockchain.
Of course, there’s a big difference between a testnet that has no value and Litecoin, which has a market capitalization of $11.8 billion.
Actually Litecoin boomed tremendously in the past 9 months. I remember it was around 40 last summer, while it is above 200 right now. Not to mention the spectacular pump and dump scheme where it reached ~300 and then Charlie Lee announced his sell off
In any case, this coin increased its value so much, that honestly i don't see any potential to continue growing rapidly with its current state and all the negative news lately (litepay, forks, etc.)
Disclaimer: I am a LTC holder