WYwyldfire·Aug 29, 2017
> If it's more profitable to mine $ARBITRARY_ALT_COIN than Bitcoin, then people would mine $ARBITRARY_ALT_COIN until the profitability equalized.
That's a reasonable theory but I don't think it holds.
Given that (1) $ARBITRARY_ALT_COIN aren't typically well-known, (2) setting up mining may require different hardware/software to enable computing this PoW, that pool, etc, (3) coins and pools have interesting reward & difficulty adjustment algorithms, some better designed to deter coin-hopping. On some coarse-enough scale the general claim of equalization is reasonable -- the differences will be minimized over time. But I have seen times when you could make 5-10% more by mining $ARBITRARY_ALT_COIN (and perhaps taking the altcoin to exchange for bitcoin).
> There's no need for that: https://github.com/jwhitehorn/jsMiner
shrug, seems like
Read the rest
we're on a tangent. This thread was speculating about whether the claim of an ad-served-miner exists. The fact that a small JS miner exists for one PoW doesn't seem to rule out the original claim, nor does it rule out the possibility that a wasm/asm.js cgminer might exist.