The question that will decide our destiny is not whether we shall expand into space. It is: shall we be one species or a million? A million species will not exhaust the ecological niches that are awaiting the arrival of intelligence.

It's as great a part of the human adventure to invent things as to understand them. John Randall wasn't a great scientist, but he was a great inventor. There's been lots more like him, and it's a shame they don't get Nobel Prizes.

Many of the technologies that are now racing ahead most rapidly, replacing human workers in factories and offices with machines, making stockholders richer and workers poorer, are indeed tending to accentuate the existing inequalities in the distribution of wealth.

The marketplace judges technologies by their practical effectiveness, by whether they succeed or fail to do the job they are designed to do.

What is politics but persuading the public to vote for this and support that and endure these for the promise of those?

There are people with an explicit political bent complaining about people having political agendas while nominating stories with political agendas. Is it political to try to be diverse? Is it political to try to imagine a non-heteronormative society? Yes, because it involves politics. But how do they expect us to not write about our lives?

Everybody has to be able to participate in a future that they want to live for. That's what technology can do.

Blockchain technology, or distributed ledger technology, is just a way of using the modern sciences of encryption to enable entities to share a common infrastructure for database retention.