Perhaps the recent rise in Bitcoin while altcoins fell (unusual compared to the start of summers pattern) was due to Charlie Lee's tweet telling all his followers to invest in BTC before buying any "shitcoin". I somewhat consider him to be the most influential voice in the cryptosphere.
That being said I fully expect/hope bitcoins price will rise.
I would also note this tweet happened immediately after stellar passed litecoin in TMC.
I think most of it had to do with money moving from altcoins to bitcoin in order to take advantage of the ETF possibly being approved.
that you are right