The blockchain network has been designed in such a way that it allows many other cryptocurrencies to be created in order to fulfill the shortcomings of Bitcoin. Anyone can create their own digital currency to suit their own specific need. One such currency network created by the power of blockchain is Lightning, which aims to cover the biggest issue with Bitcoin, which is transaction speed, by ensuring lightning-fast payments over the Blockchain network.
Hopefully implementation of lightening is as good as they say it'll be. Right now bitcoin's price doesn't justify the amount of transactions it's able to handle. I saw an interesting chart on reddit not too long ago, which tracks the price growth of Bitcoin and Ethereum with their respective number of transactions processed. Bitcoin dropped off a while ago in growing with it's transaction speed, hopefully it'll pickup. In the meanwhile, I'm very hopeful for Ethereum, though increased scaling with plasma and sharding will take a while.
Let's hope lightening solves the scaling issue. Most of the community members who tested it are sharing great opinion.