Too early for VC: best practices in building the bridge towards Series A

Early-stage is being redefined. It has become increasingly difficult to complete early-stage rounds, resulting in the emergence of a financing gap for assets and towards their maturation. What does this new context mean for the traditional pre-seed, seed, series A stages? How family offices, business angels, academic funds, partnerships are participating in bridging the early need in capital and what are other solutions to be considered? What are investors expecting young companies to anticipate for the next, bigger round?