Bull runs or the times around them are never good for investing in new cryptocurrencies or new projects mostly because a lot of scam projects are launched in the market during these times and if you are always eyeing new projects for investments, you might become a victim of these scams unless you do a lot of research before you make your investments which a lot of people don't do these days as they are always in a rush.
When bull run is around, we should invest in projects that we know have the potential to perform very well during the bull run so that we don't have our invested capital wasted and get some good returns when Bitcoin starts moving up, and it's not even difficult finding such projects because a single look at a marketplace or a website such CMC can give us a general idea about the top cryptocurrencies beside Bitcoin.