You mean Bitmain? Holy smokes! you are trying to compete with them? Why would directly need $2B investment.
Just create a single prototype that would show a miner will having that 1000% efficiency compared to their current miners.
On that it would be enough for people to fund you up. lol
Explain please what do you mean by prototype ? do you mean that I should reveal the secrets that how it is made ? and then companies try to build these miners ? I am not stupid.
I mean,you dont need have billions of money to create one.Why not took a loan and create that single miner of yours? For sure it wont cost million of dollars of expense.A several hundreds would do because no investor would tend to give funding into such so-called great ideas in mind.