I think a unified approach could be “you should provide the right amount of evidence—too little will leave people unconvinced, but too much will waste their time”.
If you need 10 bits of evidence to convince someone (number completely made up), and you have two pieces of evidence providing 5 bits each, you need to provide them both. If you have a piece of evidence providing 10 bits, and five more pieces providing 1 bit each, just provide the strongest one. (Otherwise there is a risk that the person will consider the five weakest pieces first, and they say “sorry, I remain unconvinced, and I am out of time I decided to spend on this topic”.)
Generally, start with the strongest evidence, and continue until the other person is convinced or you run out of time.
I think a unified approach could be “you should provide the right amount of evidence—too little will leave people unconvinced, but too much will waste their time”.
If you need 10 bits of evidence to convince someone (number completely made up), and you have two pieces of evidence providing 5 bits each, you need to provide them both. If you have a piece of evidence providing 10 bits, and five more pieces providing 1 bit each, just provide the strongest one. (Otherwise there is a risk that the person will consider the five weakest pieces first, and they say “sorry, I remain unconvinced, and I am out of time I decided to spend on this topic”.)
Generally, start with the strongest evidence, and continue until the other person is convinced or you run out of time.