Brian Halligan(@bhalligan):"The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn." - Alvin Toffler A lot of DMs about what inspired me to build Hal, my second brain and digital twin. This quote sums it up.

Brian Halligan

@bhalligan

Co-founder HubSpot | Sequoia | Propeller | MIT Host, Long Strange Trip pod:

Joined June 2008

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Brian Halligan@bhalligan

2026.08.12 16:43

"The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn." - Alvin Toffler A lot of DMs about what inspired me to build Hal, my second brain and digital twin. This quote sums it up.