If One Pill Can Kill... My Advice is to Not Eat Fentanyl at All... BUT... For Safety's Sake, Why Not Take Half a Fentanyl and then Wait an Hour before Taking the Other Half... OR Not... Maybe a Half Pill Got You High Enough?

Of Course... If You are High on Fentanyl You Might NOT Be able to Make a Valid Decision about Taking Another Half Pill... The Questions "Am I High Enough" might be Just Too Damn Tricky!

 Why Not simply Eat Cannabis Cookies and Drink Coffee instead? In Many States in the USA, Cannabis Cookies are Legal and Quality & Dosage is Tested... I found that eating Two Cookies and a Large Cup of Strong Coffee Got me Plenty Stoned... 

and then I Rode the Monorail to The Space Needle in Seattle... I Played the Musical Toys at the Experience Music Pavilion... a Tribute to Jimi Hendrix and Kurt Cobain... 

I Remember that in the 1970s We used to Cut our Windowpane LSD Gelatin Squares into Four Pieces and Eat One Quarter... Just to Verify that it was Actually Real... often the "ACID" Sold to Teenagers was a Witches Brew of Compounds that would make you feel strange... NOT ACTUAL LSD... and the Only Way to find out what it was... Was to Eat a Quarter Dose and wait an Hour... Often I would Realize that It WAS Good Quality but That I was ALREADY HIGH ENOUGH... So I'd Give away the rest... 

One Reason I Recommend Against Fentanyl is... I Don't LIKE the Opium High... Yes, I Felt Like the Cheshire Cat in Alice in Wonderland... My Body Vanished and All I Had Left was my Grin... BUT... It made me feel Nauseous... Queasy... You See, "they" Sold Smoke-able Opium in the Parking Lot of The Grateful Dead Concerts... and It was an Excellent Combination with LSD... Because Often LSD Made me feel Anxious... but Opium Calmed me Down... I remember one time I visited the National Art Gallery at the Smithsonian... and totally GROKKED the Paintings... then Went to a Tangerine Dream Concert at the Warner Theater... Excellent!

and then I Read a Question on FaceBorg:

Can lab grown meat replace the real meat?

and I Replied: 

If Corporations can make more money selling lab meat then pretty soon that's all that will be available... I Remember in the Asimov Book Foundation: The Son said "MOM! Not Zymoveal Again! I Hate That!" when they sat down for dinner... 

Isaac Asimov in 1953 described in "The Caves of Steel" feeding the burgeoning world population with a yeast-based food he called "zymoveal"