the investor you talk to is not into programming..
so please please please please DO NOT show him videos that spend 20 minutes talking about cryptography and how mining works.
forex investors do not watch videos about how the fed works, or how a bank note is printed. they truly dont care what patent the cotton of the paper bank note is...
so do not waste a minute on the science of bitcoin.
instead talk to them in human terms. bitcoin itself has not been hacked. (only businesses have, but thats a different story) so just say that hackers have tried to break bitcoin and failed, thats why hackers now love bitcoin for their own store of wealth, because they trust it.
talk about the government side. there are now more government investigations and countries approving bitcoin as an asset. which if you ask a government to approve a tin of baked beans as an asset, they would laugh, again making bitcoin a trusted value store for the government
talk about deflation vs inflation. EG
30 years ago a pizza was less then a dollar, now its over $10..
3 years ago 1 pizza was 5000btc. now you can buy over 60 pizza's for just 1btc.
talk about the fact that forex trading is boring and slow. EG UK-US only moves cents per day and for decades has been stuck on a bracket of £1=$1.50-$1.90 where as bitcoin has no higher or lower brackets. and definitely is at such a small utility now, and growing that the sky is literally the limit..
Keep the "how it works" short. EG
It's just an accounting ledger that everyone has a copy of that can't be faked.
stick to what he knows and wants to know. dont go into mining unless he is going to buy rigs and set them up himself. if he is an investor, its better and cheaper to just buy coins and hoard. or invest into an actual registered and legit business.
mining is not an investment in bitcoin, its an investment in electric supply companies. so dont waste too much time on the mining side.