Qtum= BTC +EVM+POS
which is a good combination of current blockchain platform. and with more innovations too.
Only criticism I have is that if Qtum is too slow, ETH will probably catch up with these innovations. ETH switching to PoS in 2018. Lite version for mobile devices is nice, but ETH could do this too. Granted, I predict it would take a year or two for the dev. team to get in order. The UXTO model is a safe difference, I assume. Qtum has an early advantage over ETH on these development... I hope they keep them and continue to push further. I also hope they can get those on the EVM atm to create mobile version to run thru Qtum (Augur, Golem, etc.).
Either way, Qtum >>>> ETC (worth over $6.00 a coin currently). I predict Qtum will take off within a few months, if not weeks, on exchanges.
more than this.
Qtum support segregate witness by default and very easily to support lighting network and more BIPs in the future (like Zcash protocol integration)
also not like Ethereum, all Ethereum transactions go through EVM, it's very inefficient.
in Qtum, since based on UTXO model, only contact transactions go through EVM, normal transactions will like BTC transactions.
that's a big advantage of stateless UTXO model, more secure and more scalable in the long term.
but do not hope people understand the design and meaning of Qtum, until they see price is more than 10$ in 1 year.
this post will help to understand the meaning of Qtum too.
If you look at the benefit of being on Bitcoin Core 0.14, see the performance improvements:
https://bitcoin.org/en/release/v0.14.0Notable changes
Performance Improvements- Validation speed and network propagation performance have been greatly improved, leading to much shorter sync and initial block download times.
- The script signature cache has been reimplemented as a “cuckoo cache”, allowing for more signatures to be cached and faster lookups.
- Assumed-valid blocks have been introduced which allows script validation to be skipped for ancestors of known-good blocks, without changing the security model.
- In some cases, compact blocks are now relayed before being fully validated as per BIP152.
- P2P networking has been refactored with a focus on concurrency and throughput. Network operations are no longer bottlenecked by validation. As a result, block fetching is several times faster than previous releases in many cases.
- The UTXO cache now claims unused mempool memory. This speeds up initial block download as UTXO lookups are a major bottleneck there, and there is no use for the mempool at that stage.
Because the target block time will be 120 seconds with Qtum Core, we won't have all those blocks that have no transactions in them, but it will be fast enough to avoid the issue that Bitcoin is currently having. Bundle SegWit into the equation, and yes, Qtum will be very efficient.