Suppose Turing Inc. creates the first ever solar powered cell phone battery that absorbs ambient light and converts it into electrical power. Furthermore, the battery stores excess absorbed light as an internal battery that lasts up to $10$ hours in the dark.

At a conference, a Turing Inc. representative presents the battery to representatives from many other companies, proclaiming the invention will revolutionize the cell phone industry. A few months later, Algos creates a solar$-$powered cell phone battery that lasts $12$ hours in the dark.

This instance of knowledge dissemination is known as $[$a$($n$)]$

network externality.

technology spillover.

positive feedback.

industrial policy.

$+95$

$+100$

This instance of knowledge dissemination is also a

negative externality.

positive externality.