Great point but I think BTC could be way higher in 10 years than just 20k...20k would be just considering fiat inflation over the years with this costant 70 billion daily market cap, plus dollar is collapsing...BTC has also a huge market both as a worldwide transactional currency and store of value.
This thing is a huge deal, combined with mainstream usage, improvement of the technology, finite supply...20k is just nothing imho