Do you think can we find past values of bitcoin mining? By using today's datas.
just using the magic numbers above.. well not so much for anything before spring 2018
for instance the asics of winter 2017 were using 14thash miners that cost $2k-$3k
not the $900 rigs of 2018
but if you math the numbers out the long way round. you can work out the magic numbers of previous batches and then put them to use against hashrate/price data..
screw it.
2017 had a magic number of between 270-380
you also gotta know when the batches were released to know when to start adjusting the ranges.
like a chart i have from a few months ago showing the year to date of a few months ago
ranges can be useful. but i just went for the cheapest/most efficient miners of a time. rolled with that. as ranges just had too much scope/spread at times.
like this