Alan Kuehl

[Alan Kuehl @AlanKuehl]

I could use your help with my fundraiser on GoFundMe. Please share, support, or donate—every small action counts. https://t.co/ynlDExKq9K

[Steve Stewart-Williams @SteveStuWill]

This optical illusion – one of the best of the last few years – will really mess with your head. How many black dots are there? The answer is 12, but your visual system won't let you see them all at once. Explanation here: https://t.co/Kymr3ydqqh