What is bitcoins killer app?

[krishnapramod]

There is no doubt that blockchain is a killer app. Bitcoin is blockchain's killer app. Blockchain technology can be put into use in different fields of life so in future blockchain might have another killer app, maybe from the field of healthcare, insurance, real estate, gaming, data storage/cloud storage, climate change (renewable energy), quite a lot of possibilities.

What is bitcoins killer app? For example, web browsers are the killer app of the Internet, Ethereum's killer app is smart contracts. So in this context, a killer application is something which guarantees that bitcoin would be adopted globally, mainstream adoption.

1. Smart contract is Ethereum's in-built application. Likewise, decentralized currency, store of value/digital gold is bitcoins in-built application. It could be said that being digital gold is bitcoins killer app.

2. Not in-built, an application which would compel people to adopt bitcoin. For example, I think BTCJam (first P2P lending website, connecting lenders and borrowers from over 120 countries) was somewhat a killer app of bitcoin. Similarly Abra can be bitcoins killer app.

So does bitcoin have a killer app which guarantees mainstream adoption?

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[hatshepsut93]

To me, it's obvious that Bitcoin's killer app would be Lightning Network or other second-layer scaling solutions. Bitcoin, or any other cryptocurrency is essentially a digital gold (which is already a huge achievement!), because it's inherently expensive to move (because every participant has to store and validate every transaction ever made), just like real gold. Solutions that will enable instant and cheap/free transaction will really turn cryptocurrencies into viable currencies and competitors of payment systems like Visa.

[davis196]

No,bitcoin doesn`t have a "killer app that guarantees mainstream adoption".
I don`t agree that BTCjam is a "killer app", most of the borrowers there  can`t even pay their small loans.
I can`t agree with hatshepsut93 that the Lightning Network would be the killer app that will secure btc global domination.Many people are afraid that LN will have issues with double spending.
Segwit might be the solution that will help for mass bitcoin adoption,but i`m not 100% sure about it.