on certainty 212

212.  In certain circumstances, for example we regard a calculation as sufficiently checked. What gives us the right to do so? Experience? May that have deceived us? Somewhere we must be finished with justification, and then there remains the proposition that this is how we calculate.

you can’t be sure –

that you have ‘sufficiently’ –

checked a calculation

at some point –

if you are to proceed –

you assume –

that you have

and all that you have to go on –

is this assumption

and this assumption –

like any assumption –

is open to question –

open to doubt –

is uncertain

© greg t. charlton. 2010.