There is a persistent debate in Bitcoin about increasing the capacity.
The popular idea seems to be to increase the blocksize from its current 1MB to push through more transactions per block. But this also risks forking the chain.
I think a much simpler idea would be to reduce the target time from 10 minutes to 5 minutes. This would make hashes less difficult (fewer leading zeros), and basically target 2 blocks per 10 minutes instead of just 1.
I'm confident there is some downside to this idea, or it would have caught on already. But I'm just not seeing it.
What is wrong with decreasing the target difficulty to increase Bitcoin's capacity?