Monday, April 20, 2026
Sunday, April 19, 2026
The Erdnase Project
Now available at www.magiciansmagicshop.com
Introducing The Erdnase Project - Marcos Waldemar
A Monographic Study on the Erdnase Change
The Erdnase Change is one of the most iconic, studied, and debated techniques in card magic.
It was first published in English in 1897 by August Roterberg in New Era Card Tricks, under the name "Excelsior Change", attributed to Adrian Plate.
Years later, it would be popularized by S. W. Erdnase in the classic The Expert at the Card Table.
Since then, it has been reinterpreted by generations of magicians... When executed well, it may be the most powerful and practical color change there is.
When executed poorly... it's an abomination.
15 Years of Obsession
For over 15 years, Marcos Waldemar has lived with a deck of cards in his hands, obsessed with this technique.
This is not just an explanation.
It is the result of years of study, trial, error, and refinement.
Today, for the first time, he shares:
His secrets
His personal variations
And the invisible subtleties that turn a move into a real illusion
What You'll Find Inside
A complete journey through the Erdnase Change, from its foundations to advanced applications:
1. M.W. Erdnase
Foundations of the original technique and Marcos' personal approach
Technical details, structure, and control
2. Multiple Erdnase Change
3. Covert Erdnase Change
4. Middle Erdnase Change
5. Step Erdnase Change
6. No Deck Erdnase Change
7. Waldemar's Favourite Sequence
8. Bonus Trick
Take your Color Changes to the next level.
Download now!
Penn & Teller Take Their Skepticism to the Supreme Court
Legendary magic duo Penn Jillette and Teller—known worldwide as Penn & Teller—are no strangers to exposing deception. But their latest move has taken them far beyond the stage and into the courtroom… all the way to the U.S. Supreme Court.
The iconic performers recently filed a friend-of-the-court brief urging the Supreme Court to review the case of Charles Don Flores, a Texas death row inmate. At the heart of the case is a controversial investigative technique: hypnosis.
When Magic Meets the Justice System
Penn Jillette, the outspoken half of the duo, was quick to clarify his position. He openly admitted that while he doesn’t know whether Flores is guilty, he strongly opposes the death penalty in all cases. But what truly drew his attention—and concern—was the reliability of the evidence used in the conviction.
“I’ve spent my life deceiving people on stage,” Penn essentially argues. “And I could do what that officer did.”
That statement cuts to the core of the issue: the use of hypnosis as a tool to recover memory.
The Problem with “Investigative Hypnosis”
The case centers around a witness whose testimony changed after undergoing hypnosis conducted by a police officer with no prior experience. Initially, the witness described suspects who looked nothing like Flores. But after the session, her identification shifted dramatically.
According to Penn & Teller, this highlights a dangerous misunderstanding of how memory works.
They argue that the common belief—that memory functions like a video recording that can be replayed—is simply false. In reality, memory is far more fragile and easily influenced, especially under suggestive questioning.
During the hypnosis session, the officer reportedly asked leading questions that may have shaped the witness’s recollection. By the time of the trial, the witness expressed absolute certainty—despite earlier contradictions.
Skeptics On and Off the Stage
Fans of Penn & Teller will recognize this territory. The duo has long built their career not just on illusion, but on exposing it. Their Showtime series Penn & Teller: BS! famously tackled pseudoscience, fraud, and questionable practices—including the misuse of hypnosis.
That background made them uniquely suited to weigh in on this case. Their brief emphasizes how easily perception and belief can be manipulated—something magicians understand better than almost anyone.
A Case with Big Implications
There is no physical evidence tying Flores to the crime, and much of the case hinges on the altered testimony. While many states now restrict or ban testimony influenced by hypnosis, those rules don’t apply retroactively in Texas.
Flores’ legal team is now attempting to reopen the case under a law that allows convictions to be challenged when based on discredited scientific methods—a difficult path that has yet to succeed for any death row inmate.
Final Thoughts
For Penn & Teller, this isn’t about proving innocence—it’s about questioning how truth is determined.
Penn summed it up bluntly: the methods used to obtain the evidence were no more reliable than the tricks performed nightly on a Las Vegas stage.
When magicians—experts in illusion—step forward to challenge the validity of evidence, it raises an unsettling question:
If deception is easy to create… how certain can we really be of what we believe?
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